{"id":90340,"date":"2025-06-01T10:26:40","date_gmt":"2025-06-01T10:26:40","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=90340"},"modified":"2025-06-01T10:26:40","modified_gmt":"2025-06-01T10:26:40","slug":"which-of-the-following-are-the-most-favourable-conditions-for-liquefyi","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-are-the-most-favourable-conditions-for-liquefyi\/","title":{"rendered":"Which of the following are the most favourable conditions for liquefyi"},"content":{"rendered":"

Which of the following are the most favourable conditions for liquefying a gas ?<\/p>\n

[amp_mcq option1=”Low pressure and high temperature” option2=”Low pressure and low temperature” option3=”High pressure and high temperature” option4=”High pressure and low temperature” correct=”option4″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC CAPF – 2019<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nLiquefying a gas requires bringing its molecules closer together and reducing their kinetic energy so that intermolecular attractive forces become dominant. This is best achieved by applying high pressure (to reduce the space between molecules) and lowering the temperature (to reduce molecular motion).
\n<\/section>\n
\n– High pressure forces gas molecules closer, increasing the likelihood of intermolecular attractions.
\n– Low temperature reduces the kinetic energy of molecules, allowing attractive forces to overcome disruptive thermal motion.
\n– Every gas has a critical temperature above which it cannot be liquefied by pressure alone, regardless of how high the pressure is. Liquefaction is only possible at or below the critical temperature.
\n<\/section>\n
\nBelow the critical temperature, the substance is called a vapor, and it can be liquefied by applying sufficient pressure. Above the critical temperature, it remains a gas even under high pressure; increasing pressure only increases its density, forming a supercritical fluid above the critical pressure. Therefore, high pressure and low temperature relative to the critical point are the most favorable conditions.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which of the following are the most favourable conditions for liquefying a gas ? [amp_mcq option1=”Low pressure and high temperature” option2=”Low pressure and low temperature” option3=”High pressure and high temperature” option4=”High pressure and low temperature” correct=”option4″] This question was previously asked in UPSC CAPF – 2019 Download PDFAttempt Online Liquefying a gas requires bringing its … <\/p>\n

Detailed SolutionWhich of the following are the most favourable conditions for liquefyi<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1085],"tags":[1119,1130,1128],"class_list":["post-90340","post","type-post","status-publish","format-standard","hentry","category-upsc-capf","tag-1119","tag-heat-and-thermodynamics","tag-physics","no-featured-image-padding"],"yoast_head":"\nWhich of the following are the most favourable conditions for liquefyi<\/title>\n<meta name=\"description\" content=\"Liquefying a gas requires bringing its molecules closer together and reducing their kinetic energy so that intermolecular attractive forces become dominant. This is best achieved by applying high pressure (to reduce the space between molecules) and lowering the temperature (to reduce molecular motion). - High pressure forces gas molecules closer, increasing the likelihood of intermolecular attractions. - Low temperature reduces the kinetic energy of molecules, allowing attractive forces to overcome disruptive thermal motion. - Every gas has a critical temperature above which it cannot be liquefied by pressure alone, regardless of how high the pressure is. Liquefaction is only possible at or below the critical temperature.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-are-the-most-favourable-conditions-for-liquefyi\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which of the following are the most favourable conditions for liquefyi\" \/>\n<meta property=\"og:description\" content=\"Liquefying a gas requires bringing its molecules closer together and reducing their kinetic energy so that intermolecular attractive forces become dominant. This is best achieved by applying high pressure (to reduce the space between molecules) and lowering the temperature (to reduce molecular motion). - High pressure forces gas molecules closer, increasing the likelihood of intermolecular attractions. - Low temperature reduces the kinetic energy of molecules, allowing attractive forces to overcome disruptive thermal motion. - Every gas has a critical temperature above which it cannot be liquefied by pressure alone, regardless of how high the pressure is. 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