{"id":66869,"date":"2026-10-13T10:01:37","date_gmt":"2026-10-13T07:01:37","guid":{"rendered":"https:\/\/wpcalc.com\/en\/?p=66869"},"modified":"2026-10-13T10:01:37","modified_gmt":"2026-10-13T07:01:37","slug":"gay-lussacs-law-calculator","status":"publish","type":"post","link":"https:\/\/wpcalc.com\/en\/chemistry\/gay-lussacs-law-calculator\/","title":{"rendered":"Gay-Lussac's Law Calculator"},"content":{"rendered":"<section class=\"not-prose calculator-box\" aria-labelledby=\"calculator-title\"><div class=\"flex items-baseline sm:items-center justify-between gap-2 sm:gap-3\"><div class=\"flex flex-col sm:flex-row sm:items-center gap-2\"><span class=\"icon icon-calculator text-primary-700! text-base! dark:text-primary-300!\" aria-hidden=\"true\"><\/span><h2 id=\"calculator-title\" class=\"text-lg font-display font-bold\">Find Pressure or Temperature at Constant Volume<\/h2><\/div><div class=\"calcdash-favorite group\">\n  <button type=\"button\" class=\"favorite\" id=\"favorite\" data-favorite-id=\"66869\" data-favorite-title=\"Gay-Lussac&#039;s Law\" data-favorite-url=\"https:\/\/wpcalc.com\/en\/chemistry\/gay-lussacs-law-calculator\/\" data-favorite-excerpt=\"Calculate how gas pressure changes with temperature in a sealed, rigid container using Gay-Lussac&#039;s law. Enter the initial pressure and temperature plus one final value to find the other.\" aria-label=\"Add to Favorites\" data-favorite-icon=\"icon icon-wind-2\">\n    <span class=\"icon icon-shape-star-empty\" aria-hidden=\"true\"><\/span>\n  <\/button>\n  <div class=\"calcdash-favorite__tip\" aria-hidden=\"true\">\n   <span class=\"favorite-tooltip\" id=\"favorite-tooltip\"><\/span>\n  <\/div>\n  <span class=\"sr-only\" role=\"status\" id=\"favorite-status\"><\/span>\n<\/div><\/div><form action=\"https:\/\/wpcalc.com\/en\/chemistry\/gay-lussacs-law-calculator\/\" method=\"POST\" class=\"calculator\" id=\"calculator-66869\" data-post=\"66869\"><fieldset class=\"fieldset-input is-1\"><legend class=\"sr-only\">Input Fields<\/legend><div class=\"is-single field\" id=\"input-1\"><span class=\"font-semibold\">Initial State<\/span><\/div><div class=\"field has-term\" id=\"input-2\"><label for=\"field-2\">Initial Pressure (P\u2081)<\/label><div class=\"term\">P\u2081<\/div>  <div class=\"absolute bottom-0 left-16 top-8 w-2 h-0.5 bg-blue-500\"><\/div><div class=\"field-group\"><input type=\"number\" name=\"initial_pressure_p\" id=\"field-2\" aria-describedby=\"calc-info-2\" step=\"any\" value=\"2\"\/><div class=\"grid grid-cols-1\"><select id=\"field-3\" name=\"unit\" aria-label=\"Unit\"><option value=\"atm\" selected>atm<\/option><option value=\"kPa\">kPa<\/option><option value=\"mmHg\">mmHg<\/option><option value=\"bar\">bar<\/option><option value=\"psi\">psi<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><small id=\"calc-info-2\">Pressure of the gas at the start.<\/small><\/div><div class=\"field has-term\" id=\"input-3\"><label for=\"field-4\">Initial Temperature (T\u2081)<\/label><div class=\"term\">T\u2081<\/div>  <div class=\"absolute bottom-0 left-16 top-8 w-2 h-0.5 bg-blue-500\"><\/div><div class=\"field-group\"><input type=\"number\" name=\"initial_temperature_t\" id=\"field-4\" aria-describedby=\"calc-info-4\" step=\"any\" value=\"300\"\/><div class=\"grid grid-cols-1\"><select id=\"field-5\" name=\"unit\" aria-label=\"Unit\"><option value=\"K\" selected>K<\/option><option value=\"C\">\u00b0C<\/option><option value=\"F\">\u00b0F<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><small id=\"calc-info-4\">Absolute temperature; \u00b0C and \u00b0F entries are converted to kelvin automatically.<\/small><\/div><div class=\"is-single field\" id=\"input-4\"><span class=\"font-semibold\">Final State<\/span><\/div><div class=\"field is-single\" id=\"input-5\"><label for=\"field-7\">Solve for<\/label><div class=\"grid grid-cols-1\"><select id=\"field-7\" name=\"solve_for\"><option value=\"p\" selected>Final pressure (P\u2082)<\/option><option value=\"t\">Final temperature (T\u2082)<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><div class=\"field has-term\" id=\"input-6\" hidden><label for=\"field-8\">Final Pressure (P\u2082)<\/label><div class=\"term\">P\u2082<\/div>  <div class=\"absolute bottom-0 left-16 top-8 w-2 h-0.5 bg-blue-500\"><\/div><div class=\"field-group\"><input type=\"number\" name=\"final_pressure_p\" id=\"field-8\" aria-describedby=\"calc-info-8\" step=\"any\" value=\"3\"\/><div class=\"grid grid-cols-1\"><select id=\"field-9\" name=\"unit\" aria-label=\"Unit\"><option value=\"atm\" selected>atm<\/option><option value=\"kPa\">kPa<\/option><option value=\"mmHg\">mmHg<\/option><option value=\"bar\">bar<\/option><option value=\"psi\">psi<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><small id=\"calc-info-8\">Enter the known final pressure when solving for temperature. The result appears in the unit selected here.<\/small><\/div><div class=\"field has-term\" id=\"input-7\"><label for=\"field-10\">Final Temperature (T\u2082)<\/label><div class=\"term\">T\u2082<\/div>  <div class=\"absolute bottom-0 left-16 top-8 w-2 h-0.5 bg-blue-500\"><\/div><div class=\"field-group\"><input type=\"number\" name=\"final_temperature_t\" id=\"field-10\" aria-describedby=\"calc-info-10\" step=\"any\" value=\"450\"\/><div class=\"grid grid-cols-1\"><select id=\"field-11\" name=\"unit\" aria-label=\"Unit\"><option value=\"K\" selected>K<\/option><option value=\"C\">\u00b0C<\/option><option value=\"F\">\u00b0F<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><small id=\"calc-info-10\">Enter the known final temperature when solving for pressure. \u00b0C and \u00b0F are converted to kelvin automatically.<\/small><\/div><\/fieldset><div class=\"buttons\"><button type=\"submit\" data-text=\"Re-Calculate\" id=\"calculate-button\" data-post=\"66869\">Calculate<\/button><button type=\"reset\">Reset<\/button><\/div><div class=\"field is-checkbox hidden!\" id=\"field-auto-calc\"><input type=\"checkbox\" id=\"auto-calc\"><label for=\"auto-calc\">Calculate automatically<\/label><small>If enabled, the result will update automatically when you change any value.<\/small><\/div><div class=\"fieldset-result is-hidden\" aria-labelledby=\"result-title\" aria-live=\"polite\" role=\"region\"> <h3 class=\"result-title bg-gradient-to-r from-primary-50 to-gray-50 dark:from-primary-900 dark:to-gray-800\" id=\"result-title\"><span class=\"icon icon-s-pulse\" aria-hidden=\"true\"><\/span> Result at Constant Volume<\/h3><div class=\"result-box\"><div class=\"field-result\" id=\"output-1\"><span class=\"field-title\"><span>Final Pressure (P\u2082)<\/span><span class=\"result-term\">P\u2082<\/span><\/span><span class=\"field-value\" id=\"result-1\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copy Result\" aria-label=\"Copy Result\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-2\"><span class=\"field-title\"><span>Final Temperature (T\u2082)<\/span><span class=\"result-term\">T\u2082<\/span><\/span><span class=\"field-value\" id=\"result-2\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copy Result\" aria-label=\"Copy Result\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-3\"><span class=\"field-title\"><span>P\/T Ratio (constant)<\/span><span class=\"result-term\">P\/T<\/span><\/span><span class=\"field-value\" id=\"result-3\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copy Result\" aria-label=\"Copy Result\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result is-column\" id=\"output-4\"><span class=\"field-title\"><span>Calculation Details<\/span><\/span><span class=\"field-value\" id=\"result-4\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copy Result\" aria-label=\"Copy Result\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result is-column\" id=\"output-5\"><span class=\"field-title\"><span>Formula and Assumptions<\/span><\/span><span class=\"field-value\" id=\"result-5\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copy Result\" aria-label=\"Copy Result\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><\/div><div class=\"result-actions\"><button type=\"button\" class=\"copy-link\"><svg viewBox=\"0 0 20 20\" fill=\"currentColor\" aria-hidden=\"true\"><path d=\"M12.232 4.232a2.5 2.5 0 0 1 3.536 3.536l-1.225 1.224a.75.75 0 0 0 1.061 1.06l1.224-1.224a4 4 0 0 0-5.656-5.656l-3 3a4 4 0 0 0 .225 5.865.75.75 0 0 0 .977-1.138 2.5 2.5 0 0 1-.142-3.667l3-3Z\"\/><path d=\"M11.603 7.963a.75.75 0 0 0-.977 1.138 2.5 2.5 0 0 1 .142 3.667l-3 3a2.5 2.5 0 0 1-3.536-3.536l1.225-1.224a.75.75 0 0 0-1.061-1.06l-1.224 1.224a4 4 0 1 0 5.656 5.656l3-3a4 4 0 0 0-.225-5.865Z\"\/><\/svg><span class=\"copy-link__text\">Copy link to this calculation<\/span><\/button><span class=\"sr-only\" role=\"status\" id=\"copy-link-status\"><\/span><\/div><\/div><a href=\"#respond\" class=\"hidden transition-opacity duration-300 opacity-0 w-50 text-sm justify-center items-center gap-2 px-4 py-2 rounded bg-gray-200 text-gray-700 hover:bg-gray-300\" id=\"leave-comment\"><span class=\"icon icon-comments\" aria-hidden=\"true\"><\/span>Leave a Comment<\/a><\/form><\/section><section id=\"calc-reactions\" class=\"not-prose hidden my-12 bg-gradient-to-r from-primary-50 to-gray-50 border border-indigo-100 rounded-xl px-6 py-4 shadow-sm\" data-post=\"66869\" aria-live=\"polite\" aria-labelledby=\"calc-reactions-title\"><p id=\"calc-reactions-title\" class=\"text-sm text-gray-500 text-center mb-2\">How did this result make you feel?<\/p><div role=\"group\" aria-labelledby=\"calc-reactions-title\" class=\"grid grid-cols-3 sm:flex sm:flex-row sm:justify-around gap-4 sm:items-center sm:flex-wrap\"><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"like\"><span class=\"reaction-count\" data-reaction-count=\"like\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude00 <\/span><span class=\"reaction-description font-medium\">Like <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"helpful\"><span class=\"reaction-count\" data-reaction-count=\"helpful\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\udca1 <\/span><span class=\"reaction-description font-medium\">Helpful <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"confused\"><span class=\"reaction-count\" data-reaction-count=\"confused\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude15 <\/span><span class=\"reaction-description font-medium\">Confused 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border border-primary-100 bg-white\/50 backdrop-blur-sm px-4 py-2 text-sm text-center shadow-sm\"><\/div><\/section><div class=\"calcdash-ad not-prose calcdash-ad--calc_result calcdash-ad--in-article\"><ins class=\"adsbygoogle\" style=\"display:block\" data-ad-client=\"ca-pub-1721569815777345\" data-ad-slot=\"6317458308\" data-ad-layout=\"in-article\" data-ad-format=\"fluid\"><\/ins><script>(adsbygoogle = window.adsbygoogle || []).push({});<\/script><\/div>\n<style id=\"wpcoderpro-inline-1\">.formula-box {\r\n\tborder-bottom: none !important;\r\n}<\/style><section class=\"formula-box\" aria-labelledby=\"formula-title\">\r\n\t<div id=\"formula-title\" class=\"not-prose font-display mb-4\"><span class=\"icon icon-formula\" aria-hidden=\"true\"><\/span><h2>Gay-Lussac's Law Formula<\/h2><\/div>\r\n\t<figure class=\"not-prose formula\">\r\n\t\t<figcaption class=\"formula-title\">Formula<\/figcaption>\r\n\t\t<div class=\"text-base text-gray-800\" id=\"formula\">\n\\[ \\frac{P_1}{T_1} = \\frac{P_2}{T_2} \\quad \\Longrightarrow \\quad P_2 = P_1 \\cdot \\frac{T_2}{T_1}, \\quad T_2 = T_1 \\cdot \\frac{P_2}{P_1} \\]\n<\/div>\r\n\t<\/figure>\r\n\t<\/p>\n<p><strong>Where:<\/strong><\/p>\n<ul>\n<li>\\(P_1\\) \u2014 initial pressure of the gas<\/li>\n<li>\\(T_1\\) \u2014 initial absolute temperature (in kelvin)<\/li>\n<li>\\(P_2\\) \u2014 final pressure of the gas<\/li>\n<li>\\(T_2\\) \u2014 final absolute temperature (in kelvin)<\/li>\n<\/ul>\n<p>The formula expresses that at constant volume, the pressure of a fixed amount of gas is directly proportional to its absolute temperature: the ratio \\(P\/T\\) stays the same before and after any change.<\/p>\n<p>\r\n<\/section>\n<style id=\"wpcoderpro-inline-459\">.calculation-box {\r\n\tborder-bottom: none !important;\r\n}<\/style><section id=\"calculation\" class=\"calculation-box\" aria-labelledby=\"calculation-title\">\r\n\t<div id=\"calculation-title\" class=\"not-prose font-display\"><span class=\"icon icon-unordered-list\" aria-hidden=\"true\"><\/span><h2>Gay-Lussac's Law \u2013 Calculation Example<\/h2><\/div>\r\n\r\n<\/p>\n<p><strong>Example:<\/strong> a rigid steel tank holds a gas at 2 atm and 300 K. The tank is heated until the gas reaches 450 K. What is the final pressure?<\/p>\n<p>\\[ P_2 = P_1 \\cdot \\frac{T_2}{T_1} = 2\\ \\text{atm} \\times \\frac{450\\ \\text{K}}{300\\ \\text{K}} = 3\\ \\text{atm} \\]<\/p>\n<p><strong>Result:<\/strong> the final pressure is 3 atm. The check gives \\(P_1\/T_1 = 0.006667\\) atm\/K and \\(P_2\/T_2 = 0.006667\\) atm\/K \u2014 the constant ratio confirms the calculation.<\/p>\n<p>\n\r\n<\/section>\n<h2>How to Use the Calculator<\/h2>\n<ol>\n<li>Enter the <strong>Initial Pressure (P\u2081)<\/strong> and pick its unit \u2014 atm, kPa, mmHg, bar or psi.<\/li>\n<li>Enter the <strong>Initial Temperature (T\u2081)<\/strong> and its unit. Values in \u00b0C or \u00b0F are converted to kelvin automatically, because the law requires absolute temperature.<\/li>\n<li>In the <strong>Solve for<\/strong> dropdown, choose whether the unknown is the final pressure or the final temperature.<\/li>\n<li>Fill in the one final value you know: the <strong>Final Temperature (T\u2082)<\/strong> when solving for pressure, or the <strong>Final Pressure (P\u2082)<\/strong> when solving for temperature. Select the units you want the result displayed in.<\/li>\n<li>Read the results: the unknown final value, the constant \\(P\/T\\) ratio, and a detailed breakdown showing every conversion and substitution.<\/li>\n<\/ol>\n<h2>What Is Gay-Lussac's Law?<\/h2>\n<p>Gay-Lussac's law states that the pressure exerted by a fixed mass of gas held at constant volume is directly proportional to its absolute temperature. Doubling the kelvin temperature of a gas in a sealed, rigid container doubles its pressure; halving the temperature halves the pressure. The law was formulated by the French chemist Joseph Louis Gay-Lussac in the early 1800s, based on experimental measurements of how gases behave when heated in closed vessels.<\/p>\n<p>The physical reason is straightforward. In a rigid container the volume and the number of molecules never change, so the only way temperature can affect the pressure is through molecular motion. Heating the gas makes its molecules move faster, so they collide with the walls more often and more forcefully \u2014 which raises the pressure in exact proportion to the temperature in kelvin.<\/p>\n<p>The key to applying the law correctly is absolute temperature. Celsius or Fahrenheit scales are arbitrary: 20 \u00b0C is not \"twice as hot\" as 10 \u00b0C. Kelvin starts at absolute zero, so 300 K genuinely is twice the thermal energy of 150 K. If you enter a temperature in \u00b0C or \u00b0F, this calculator converts it to kelvin before applying the formula, then converts the answer back to your chosen unit.<\/p>\n<p>The result tells you what pressure (or temperature) the gas reaches after the change. If the calculated final pressure exceeds the rating of the actual container, the vessel may rupture \u2014 a practical concern for aerosol cans, gas cylinders and sealed pressure vessels, and the reason \"do not incinerate\" warnings exist.<\/p>\n<h2>Assumptions, Limitations and Tips<\/h2>\n<ul>\n<li><strong>Constant volume and amount of gas:<\/strong> the law applies only to a sealed, rigid container. If gas escapes or the container expands, use a more general relation such as the <a href=\"https:\/\/wpcalc.com\/en\/chemistry\/van-der-waals-equation-calculator\/\">Van der Waals equation<\/a> instead.<\/li>\n<li><strong>Ideal gas behaviour:<\/strong> the law is exact for an ideal gas. Real gases deviate at very high pressures or near their condensation point, where intermolecular forces and molecular volume matter. For most everyday conditions (moderate pressures, temperatures well above boiling) the deviation is small.<\/li>\n<li><strong>No phase change:<\/strong> the gas must remain a gas. If the temperature drops enough for the substance to condense or freeze, the proportionality breaks down.<\/li>\n<li><strong>Use absolute temperature:<\/strong> never plug Celsius values into the formula by hand \u2014 a negative or zero \u00b0C value makes the ratio meaningless. This calculator handles the conversion, but keep it in mind on paper.<\/li>\n<li><strong>Mixed units are fine for pressure:<\/strong> since the formula uses a ratio of pressures, \\(P_1\\) and \\(P_2\\) may be in different units as long as the calculator converts them (which it does internally), but temperatures must always be absolute.<\/li>\n<\/ul>\n<p>Gay-Lussac's law is one of several gas-law relationships that each hold one variable fixed. If you're studying gas behaviour, you may also find the <a href=\"https:\/\/wpcalc.com\/en\/chemistry\/grahams-law-calculator\/\">Graham's law calculator<\/a> for effusion rates and the <a href=\"https:\/\/wpcalc.com\/en\/chemistry\/van-t-hoff-equation-calculator\/\">Van 't Hoff equation calculator<\/a> for temperature effects on equilibrium useful companions.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Calculate how gas pressure changes with temperature in a sealed, rigid container using Gay-Lussac's law. Enter the initial pressure and temperature plus one final value to find the other.<\/p>\n","protected":false},"author":3168,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[54],"tags":[55],"class_list":["post-66869","post","type-post","status-publish","format-standard","hentry","category-chemistry","tag-gases"],"acf":[],"_links":{"self":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/66869","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/users\/3168"}],"replies":[{"embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/comments?post=66869"}],"version-history":[{"count":1,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/66869\/revisions"}],"predecessor-version":[{"id":66871,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/66869\/revisions\/66871"}],"wp:attachment":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/media?parent=66869"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/categories?post=66869"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/tags?post=66869"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}