{"id":268680,"date":"2025-07-24T07:28:55","date_gmt":"2025-07-24T07:28:55","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=268680"},"modified":"2025-07-24T07:28:57","modified_gmt":"2025-07-24T07:28:57","slug":"the-boiling-point-of-water-on-the-kelvin-temperature-scale-is-373-15-k-and-the-freezing-temperature-of-water-is-273-15-k","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/24\/the-boiling-point-of-water-on-the-kelvin-temperature-scale-is-373-15-k-and-the-freezing-temperature-of-water-is-273-15-k\/","title":{"rendered":"The boiling point of water on the Kelvin temperature scale is 373.15 K and the freezing temperature of water is 273.15 K"},"content":{"rendered":"\n<p>The boiling point of water on the Kelvin temperature scale is 373.15 K and the freezing temperature of water is 273.15 K. A temperature scale, called the Reaumur (R) scale, is defined by identifying the freezing point of water as 0.0\u00c2\u00b0R and the boiling point of water as 80.0\u00c2\u00b0R. What is 62.3\u00c2\u00b0R on the Kelvin scale? Use the graphing method (y=mx+b).<\/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 62.3\u00b0R to the Kelvin scale, we need to establish a linear relationship between the Reaumur (R) and Kelvin (K) scales. We can do this using the formula for a straight line y=mx+by = mx + by=mx+b, where:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>yyy represents the temperature in Kelvin (K),<\/li>\n\n\n\n<li>xxx represents the temperature in Reaumur (R),<\/li>\n\n\n\n<li>mmm is the slope of the line, and<\/li>\n\n\n\n<li>bbb is the y-intercept.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Step 1: Find the slope (m) and y-intercept (b)<\/h3>\n\n\n\n<p>We know the following data points:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The freezing point of water: 0.0\u00b0R corresponds to 273.15 K.<\/li>\n\n\n\n<li>The boiling point of water: 80.0\u00b0R corresponds to 373.15 K.<\/li>\n<\/ul>\n\n\n\n<p>Using these two points, we can calculate the slope of the line mmm:m=373.15\u2009K\u2212273.15\u2009K80.0\u2009R\u22120.0\u2009R=100.080.0=1.25\u2009K&nbsp;per&nbsp;\u00b0Rm = \\frac{373.15 \\, \\text{K} &#8211; 273.15 \\, \\text{K}}{80.0 \\, \\text{R} &#8211; 0.0 \\, \\text{R}} = \\frac{100.0}{80.0} = 1.25 \\, \\text{K per \u00b0R}m=80.0R\u22120.0R373.15K\u2212273.15K\u200b=80.0100.0\u200b=1.25K&nbsp;per&nbsp;\u00b0R<\/p>\n\n\n\n<p>Now, we can find the y-intercept bbb. Using the point (0, 273.15):y=mx+b\u2005\u200a\u27f9\u2005\u200a273.15=1.25(0)+b\u2005\u200a\u27f9\u2005\u200ab=273.15y = mx + b \\implies 273.15 = 1.25(0) + b \\implies b = 273.15y=mx+b\u27f9273.15=1.25(0)+b\u27f9b=273.15<\/p>\n\n\n\n<p>Thus, the equation relating Reaumur (R) to Kelvin (K) is:K=1.25R+273.15K = 1.25R + 273.15K=1.25R+273.15<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Step 2: Convert 62.3\u00b0R to Kelvin<\/h3>\n\n\n\n<p>Now that we have the equation, we can convert 62.3\u00b0R to Kelvin:K=1.25(62.3)+273.15K = 1.25(62.3) + 273.15K=1.25(62.3)+273.15K=77.875+273.15=351.025\u2009KK = 77.875 + 273.15 = 351.025 \\, \\text{K}K=77.875+273.15=351.025K<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Final Answer:<\/h3>\n\n\n\n<p>The temperature of 62.3\u00b0R on the Kelvin scale is <strong>351.025 K<\/strong>.<\/p>\n\n\n\n<p>This method relies on the understanding of linear relationships between temperature scales, allowing for easy conversion when given the freezing and boiling points on both scales. The linear equation K=1.25R+273.15K = 1.25R + 273.15K=1.25R+273.15 efficiently relates Reaumur and Kelvin temperatures across the entire range.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/07\/learnexams-banner6-1804.jpeg\" alt=\"\" class=\"wp-image-268685\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>The boiling point of water on the Kelvin temperature scale is 373.15 K and the freezing temperature of water is 273.15 K. A temperature scale, called the Reaumur (R) scale, is defined by identifying the freezing point of water as 0.0\u00c2\u00b0R and the boiling point of water as 80.0\u00c2\u00b0R. What is 62.3\u00c2\u00b0R on the Kelvin [&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-268680","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/268680","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=268680"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/268680\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=268680"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=268680"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=268680"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}