{"id":88136,"date":"2025-06-01T07:03:10","date_gmt":"2025-06-01T07:03:10","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=88136"},"modified":"2025-06-01T07:03:10","modified_gmt":"2025-06-01T07:03:10","slug":"the-absolute-zero-i-e-temperature-below-which-is-not-achievable-is","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/the-absolute-zero-i-e-temperature-below-which-is-not-achievable-is\/","title":{"rendered":"The absolute zero, i.e., temperature below which is not achievable, is"},"content":{"rendered":"<p>The absolute zero, i.e., temperature below which is not achievable, is about:<\/p>\n<p>[amp_mcq option1=&#8221;0 \u00b0C&#8221; option2=&#8221;\u2013273 K&#8221; option3=&#8221;\u2013273 \u00b0C&#8221; option4=&#8221;\u2013300 \u00b0C&#8221; correct=&#8221;option3&#8243;]<\/p>\n<div class=\"psc-box-pyq-exam-year-detail\">\n<div class=\"pyq-exam\">\n<div class=\"psc-heading\">This question was previously asked in<\/div>\n<div class=\"psc-title line-ellipsis\">UPSC NDA-2 &#8211; 2015<\/div>\n<\/div>\n<div class=\"pyq-exam-psc-buttons\"><a href=\"\/pyq\/pyq-upsc-nda-2-2015.pdf\" target=\"_blank\" class=\"psc-pdf-button\" rel=\"noopener\">Download PDF<\/a><a href=\"\/pyq-upsc-nda-2-2015\" target=\"_blank\" class=\"psc-attempt-button\" rel=\"noopener\">Attempt Online<\/a><\/div>\n<\/div>\n<section id=\"pyq-correct-answer\">\nAbsolute zero, the theoretical lowest possible temperature, is approximately -273 \u00b0C.<br \/>\n<\/section>\n<section id=\"pyq-key-points\">\nAbsolute zero is defined as 0 Kelvin (0 K). The Kelvin temperature scale is directly related to the Celsius scale by the formula K = \u00b0C + 273.15. Therefore, 0 K is equal to -273.15 \u00b0C. The option -273 \u00b0C is the closest approximation among the choices.<br \/>\n<\/section>\n<section id=\"pyq-additional-information\">\nAt absolute zero, particles theoretically cease all fundamental motion. According to the third law of thermodynamics, absolute zero is unattainable in any physical system, although temperatures very close to it have been achieved experimentally.<br \/>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>The absolute zero, i.e., temperature below which is not achievable, is about: [amp_mcq option1=&#8221;0 \u00b0C&#8221; option2=&#8221;\u2013273 K&#8221; option3=&#8221;\u2013273 \u00b0C&#8221; option4=&#8221;\u2013300 \u00b0C&#8221; correct=&#8221;option3&#8243;] This question was previously asked in UPSC NDA-2 &#8211; 2015 Download PDFAttempt Online Absolute zero, the theoretical lowest possible temperature, is approximately -273 \u00b0C. Absolute zero is defined as 0 Kelvin (0 K). &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"The absolute zero, i.e., temperature below which is not achievable, is\" class=\"read-more button\" href=\"https:\/\/exam.pscnotes.com\/mcq\/the-absolute-zero-i-e-temperature-below-which-is-not-achievable-is\/#more-88136\">Detailed Solution<span class=\"screen-reader-text\">The absolute zero, i.e., temperature below which is not achievable, is<\/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":[1094],"tags":[1443,1130,1128],"class_list":["post-88136","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-2","tag-1443","tag-heat-and-thermodynamics","tag-physics","no-featured-image-padding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>The absolute zero, i.e., temperature below which is not achievable, is<\/title>\n<meta name=\"description\" content=\"Absolute zero, the theoretical lowest possible temperature, is approximately -273 \u00b0C. Absolute zero is defined as 0 Kelvin (0 K). The Kelvin temperature scale is directly related to the Celsius scale by the formula K = \u00b0C + 273.15. Therefore, 0 K is equal to -273.15 \u00b0C. The option -273 \u00b0C is the closest approximation among the choices.\" \/>\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\/the-absolute-zero-i-e-temperature-below-which-is-not-achievable-is\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The absolute zero, i.e., temperature below which is not achievable, is\" \/>\n<meta property=\"og:description\" content=\"Absolute zero, the theoretical lowest possible temperature, is approximately -273 \u00b0C. Absolute zero is defined as 0 Kelvin (0 K). The Kelvin temperature scale is directly related to the Celsius scale by the formula K = \u00b0C + 273.15. Therefore, 0 K is equal to -273.15 \u00b0C. The option -273 \u00b0C is the closest approximation among the choices.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/the-absolute-zero-i-e-temperature-below-which-is-not-achievable-is\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T07:03:10+00:00\" \/>\n<meta name=\"author\" content=\"rawan239\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"rawan239\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"The absolute zero, i.e., temperature below which is not achievable, is","description":"Absolute zero, the theoretical lowest possible temperature, is approximately -273 \u00b0C. Absolute zero is defined as 0 Kelvin (0 K). The Kelvin temperature scale is directly related to the Celsius scale by the formula K = \u00b0C + 273.15. Therefore, 0 K is equal to -273.15 \u00b0C. The option -273 \u00b0C is the closest approximation among the choices.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/exam.pscnotes.com\/mcq\/the-absolute-zero-i-e-temperature-below-which-is-not-achievable-is\/","og_locale":"en_US","og_type":"article","og_title":"The absolute zero, i.e., temperature below which is not achievable, is","og_description":"Absolute zero, the theoretical lowest possible temperature, is approximately -273 \u00b0C. Absolute zero is defined as 0 Kelvin (0 K). The Kelvin temperature scale is directly related to the Celsius scale by the formula K = \u00b0C + 273.15. Therefore, 0 K is equal to -273.15 \u00b0C. The option -273 \u00b0C is the closest approximation among the choices.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/the-absolute-zero-i-e-temperature-below-which-is-not-achievable-is\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T07:03:10+00:00","author":"rawan239","twitter_card":"summary_large_image","twitter_misc":{"Written by":"rawan239","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/exam.pscnotes.com\/mcq\/the-absolute-zero-i-e-temperature-below-which-is-not-achievable-is\/","url":"https:\/\/exam.pscnotes.com\/mcq\/the-absolute-zero-i-e-temperature-below-which-is-not-achievable-is\/","name":"The absolute zero, i.e., temperature below which is not achievable, is","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T07:03:10+00:00","dateModified":"2025-06-01T07:03:10+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"Absolute zero, the theoretical lowest possible temperature, is approximately -273 \u00b0C. Absolute zero is defined as 0 Kelvin (0 K). The Kelvin temperature scale is directly related to the Celsius scale by the formula K = \u00b0C + 273.15. Therefore, 0 K is equal to -273.15 \u00b0C. The option -273 \u00b0C is the closest approximation among the choices.","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/the-absolute-zero-i-e-temperature-below-which-is-not-achievable-is\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/the-absolute-zero-i-e-temperature-below-which-is-not-achievable-is\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/the-absolute-zero-i-e-temperature-below-which-is-not-achievable-is\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"UPSC NDA-2","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/upsc-nda-2\/"},{"@type":"ListItem","position":3,"name":"The absolute zero, i.e., temperature below which is not achievable, is"}]},{"@type":"WebSite","@id":"https:\/\/exam.pscnotes.com\/mcq\/#website","url":"https:\/\/exam.pscnotes.com\/mcq\/","name":"MCQ and Quiz for Exams","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/exam.pscnotes.com\/mcq\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209","name":"rawan239","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/761a7274f9cce048fa5b921221e7934820d74514df93ef195a9d22af0c1c9001?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/761a7274f9cce048fa5b921221e7934820d74514df93ef195a9d22af0c1c9001?s=96&d=mm&r=g","caption":"rawan239"},"sameAs":["https:\/\/exam.pscnotes.com"],"url":"https:\/\/exam.pscnotes.com\/mcq\/author\/rawan239\/"}]}},"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/88136","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/comments?post=88136"}],"version-history":[{"count":0,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/88136\/revisions"}],"wp:attachment":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/media?parent=88136"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/categories?post=88136"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/tags?post=88136"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}