{"id":154315,"date":"2023-08-03T17:10:09","date_gmt":"2023-08-03T11:40:09","guid":{"rendered":"https:\/\/www.gkseries.com\/blog\/?p=154315"},"modified":"2023-08-03T17:10:10","modified_gmt":"2023-08-03T11:40:10","slug":"the-entropy-change-for-the-melting-of-x-moles-of-ice-heat-of-fusion-is-80-cal-g-1-at-273-k-and-1-atm-pressure-is-28-80-cal-k-1","status":"publish","type":"post","link":"https:\/\/www.gkseries.com\/blog\/the-entropy-change-for-the-melting-of-x-moles-of-ice-heat-of-fusion-is-80-cal-g-1-at-273-k-and-1-atm-pressure-is-28-80-cal-k-1\/","title":{"rendered":"The entropy change for the melting of \u2018x\u2019 moles of ice (heat of fusion is 80 cal g\u20131) at 273 K and 1 atm pressure is 28.80 cal K\u20131"},"content":{"rendered":"\n<p>Q. The entropy change for the melting of \u2018<strong>x<\/strong>\u2019 moles of ice (heat of fusion is 80 cal g<sup>\u20131<\/sup>) at 273 K and 1 atm pressure is 28.80 cal K<sup>\u20131<\/sup>. The value of \u2018<strong>x<\/strong>\u2019 is___________. (Round off to two decimal places)<\/p>\n\n\n\n<p>(Molecular weight of water =18 g\/mol)<\/p>\n\n\n\n<p>Solution:<\/p>\n\n\n\n<p>\u0394 S =\u00a0\u0394 H\/ T\u00a0, OR\u00a0 <\/p>\n\n\n\n<p>\u0394 S =\u00a0\u0394 H x W \/ T , where W = weight.\u00a0 <\/p>\n\n\n\n<p>No. of Moles = Given Mass \/ Molar mass <\/p>\n\n\n\n<p>Calculation:-\u00a0 <\/p>\n\n\n\n<p>\u0394 S =\u00a0\u0394 H x W \/ T, <\/p>\n\n\n\n<p>28.80 cal K-1\u00a0= 80 cal g-1\u00a0x W \/ 273 K, <\/p>\n\n\n\n<p>W = 28.80 cal K-1\u00a0x 273 K \/ 80 cal g-1\u00a0= 98.28 g.\u00a0 <\/p>\n\n\n\n<p>Using,\u00a0No. of Moles = Given Mass \/ Molar mass , <\/p>\n\n\n\n<p>No of moles = 98.28\u00a0g \/ 18 g = 5.46 moles.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Q. The entropy change for the melting of \u2018x\u2019 moles of ice (heat of fusion is 80 cal g\u20131) at 273 K and 1 atm pressure is 28.80 cal K\u20131. The value of \u2018x\u2019 is___________. (Round off to two decimal places) (Molecular weight of water =18 g\/mol) Solution: \u0394 S =\u00a0\u0394 H\/ T\u00a0, OR\u00a0 \u0394 [&hellip;]<\/p>\n","protected":false},"author":419,"featured_media":154316,"comment_status":"open","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-4)","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-4)","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-4)","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":[5141],"tags":[5140],"class_list":["post-154315","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-gate","tag-gate-questions"],"_links":{"self":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts\/154315","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/users\/419"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/comments?post=154315"}],"version-history":[{"count":1,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts\/154315\/revisions"}],"predecessor-version":[{"id":154317,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts\/154315\/revisions\/154317"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/media\/154316"}],"wp:attachment":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/media?parent=154315"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/categories?post=154315"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/tags?post=154315"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}