{"id":218459,"date":"2025-05-23T19:38:22","date_gmt":"2025-05-23T19:38:22","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=218459"},"modified":"2025-05-23T19:38:24","modified_gmt":"2025-05-23T19:38:24","slug":"what-is-the-corresponding-reading-on-the-kelvin-scale","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/05\/23\/what-is-the-corresponding-reading-on-the-kelvin-scale\/","title":{"rendered":"What is the corresponding reading on the Kelvin scale"},"content":{"rendered":"\n<p>The temperature of liquid nitrogen is -196 C. What is the corresponding reading on the Kelvin scale?<\/p>\n\n\n\n<p>A. 77K<br>B. -127 K<br>C. -91 K<br>D. 48 K<br>E. 146 K<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-1-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>To convert from degrees Celsius (\u00b0C) to Kelvin (K), you use the formula:<\/p>\n\n\n\n<p>$$<br>K = \u00b0C + 273.15<br>$$<\/p>\n\n\n\n<p>Given:<\/p>\n\n\n\n<p>$$<br>\u00b0C = -196<br>$$<\/p>\n\n\n\n<p>Substitute into the formula:<\/p>\n\n\n\n<p>$$<br>K = -196 + 273.15 = 77.15<br>$$<\/p>\n\n\n\n<p>Rounded to the nearest whole number, the temperature is <strong>77 K<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Correct Answer: <strong>A. 77K<\/strong><\/h3>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><\/h3>\n\n\n\n<p>Temperature is a measure of the average kinetic energy of particles in a substance. The Celsius and Kelvin scales are both used to measure temperature, but they have different starting points. The <strong>Celsius scale<\/strong> is based on the freezing (0\u00b0C) and boiling (100\u00b0C) points of water at standard atmospheric pressure, while the <strong>Kelvin scale<\/strong> is an absolute temperature scale used in science.<\/p>\n\n\n\n<p>The Kelvin scale starts at <strong>absolute zero (0 K)<\/strong> \u2014 the theoretical point at which particles have minimum possible thermal motion. This is equivalent to -273.15\u00b0C. Unlike Celsius or Fahrenheit, the Kelvin scale does <strong>not use degrees<\/strong>, just &#8220;Kelvin&#8221; (K).<\/p>\n\n\n\n<p>To convert from Celsius to Kelvin, you <strong>add 273.15<\/strong>. This is because 0\u00b0C is equal to 273.15 K. So, for any temperature in Celsius:<\/p>\n\n\n\n<p>$$<br>\\text{Kelvin} = \\text{Celsius} + 273.15<br>$$<\/p>\n\n\n\n<p>Liquid nitrogen is commonly used as a cryogenic coolant and has a boiling point of <strong>-196\u00b0C<\/strong>. When we convert this to Kelvin:<\/p>\n\n\n\n<p>$$<br>-196 + 273.15 = 77.15\\, \\text{K}<br>$$<\/p>\n\n\n\n<p>This value, when rounded to the nearest whole number, gives us <strong>77 K<\/strong>. This places liquid nitrogen well below the freezing point of water, explaining its ability to rapidly freeze materials upon contact.<\/p>\n\n\n\n<p>Among the provided options:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>A. 77K<\/strong> is the correct and scientifically accurate answer.<\/li>\n\n\n\n<li>The other choices are incorrect and do not align with the proper conversion from Celsius to Kelvin.<\/li>\n<\/ul>\n\n\n\n<p>Therefore, <strong>Option A is correct<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/05\/image-249.png\" alt=\"\" class=\"wp-image-218460\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>The temperature of liquid nitrogen is -196 C. What is the corresponding reading on the Kelvin scale? A. 77KB. -127 KC. -91 KD. 48 KE. 146 K The Correct Answer and Explanation is: To convert from degrees Celsius (\u00b0C) to Kelvin (K), you use the formula: $$K = \u00b0C + 273.15$$ Given: $$\u00b0C = -196$$ [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-218459","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/218459","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=218459"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/218459\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=218459"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=218459"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=218459"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}