{"id":87470,"date":"2025-06-01T06:44:49","date_gmt":"2025-06-01T06:44:49","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=87470"},"modified":"2025-06-01T06:44:49","modified_gmt":"2025-06-01T06:44:49","slug":"the-amount-of-heat-required-to-change-a-liquid-to-gaseous-state-withou","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/the-amount-of-heat-required-to-change-a-liquid-to-gaseous-state-withou\/","title":{"rendered":"The amount of heat required to change a liquid to gaseous state withou"},"content":{"rendered":"

The amount of heat required to change a liquid to gaseous state without any change in temperature is known as<\/p>\n

[amp_mcq option1=”specific heat capacity” option2=”mechanical equivalent of heat” option3=”latent heat of vaporization” option4=”quenching” correct=”option3″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC NDA-1 – 2017<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe heat energy required to change the state of a substance from liquid to gas at a constant temperature (its boiling point) is called the latent heat of vaporization. This energy is used to overcome the intermolecular forces holding the substance in the liquid state during the phase change, rather than increasing the kinetic energy of molecules, which would increase temperature.
\n<\/section>\n
\nLatent heat is the heat absorbed or released during a phase transition (like melting, freezing, vaporization, condensation, sublimation) that occurs at a constant temperature. ‘Latent’ means hidden, as the heat transfer does not result in a temperature change during the process.
\n<\/section>\n
\nSpecific heat capacity relates heat added to temperature change. Mechanical equivalent of heat relates work and heat. Quenching is a rapid cooling process.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

The amount of heat required to change a liquid to gaseous state without any change in temperature is known as [amp_mcq option1=”specific heat capacity” option2=”mechanical equivalent of heat” option3=”latent heat of vaporization” option4=”quenching” correct=”option3″] This question was previously asked in UPSC NDA-1 – 2017 Download PDFAttempt Online The heat energy required to change the state … <\/p>\n

Detailed SolutionThe amount of heat required to change a liquid to gaseous state withou<\/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":[1093],"tags":[1101,1130,1128],"class_list":["post-87470","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-1","tag-1101","tag-heat-and-thermodynamics","tag-physics","no-featured-image-padding"],"yoast_head":"\nThe amount of heat required to change a liquid to gaseous state withou<\/title>\n<meta name=\"description\" content=\"The heat energy required to change the state of a substance from liquid to gas at a constant temperature (its boiling point) is called the latent heat of vaporization. This energy is used to overcome the intermolecular forces holding the substance in the liquid state during the phase change, rather than increasing the kinetic energy of molecules, which would increase temperature. Latent heat is the heat absorbed or released during a phase transition (like melting, freezing, vaporization, condensation, sublimation) that occurs at a constant temperature. 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