{"id":195342,"date":"2025-02-28T07:26:20","date_gmt":"2025-02-28T07:26:20","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=195342"},"modified":"2025-02-28T07:26:22","modified_gmt":"2025-02-28T07:26:22","slug":"the-unary-phase-diagram-for-sio2","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/02\/28\/the-unary-phase-diagram-for-sio2\/","title":{"rendered":"The unary phase diagram for SiO2"},"content":{"rendered":"\n<p>The unary phase diagram for SiO2 is<\/p>\n\n\n\n<p> Locate the triple<\/p>\n\n\n\n<p>point where solid, liquid, and vapor coexist and give the temperature and the type<\/p>\n\n\n\n<p>of solid present. What do the other<\/p>\n\n\n\n<p>\u201ctriple\u201d points indicate?<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/02\/image-1603.png\" alt=\"\" class=\"wp-image-195343\"\/><\/figure>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\"><strong>The Correct Answer and Explanation is :<\/strong><\/mark><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/02\/image-1604.png\" alt=\"\" class=\"wp-image-195344\"\/><\/figure>\n\n\n\n<p>In the unary phase diagram of silicon dioxide (SiO\u2082), several key triple points exist where three distinct phases coexist in equilibrium. One significant triple point occurs at a temperature of approximately 1,470\u00b0C, where the solid phase \u03b2-cristobalite coexists with liquid and vapor phases. At this juncture, SiO\u2082 can simultaneously exist as a solid (\u03b2-cristobalite), a liquid, and a vapor.<\/p>\n\n\n\n<p>Another notable triple point is found at approximately 1,713\u00b0C, where the solid phase \u03b2-tridymite coexists with liquid and vapor phases. This indicates that at this specific temperature, SiO\u2082 can exist simultaneously as \u03b2-tridymite, liquid, and vapor.<\/p>\n\n\n\n<p>Additionally, the phase diagram features a triple point at approximately 573\u00b0C, where the solid phases \u03b1-quartz and \u03b2-quartz coexist with the vapor phase. This point signifies the equilibrium between these two polymorphs of quartz and vapor.<\/p>\n\n\n\n<p>These triple points are critical in understanding the phase behavior of SiO\u2082 under varying temperature and pressure conditions. They delineate the precise conditions under which multiple phases can coexist, providing valuable insights into the thermodynamic properties and stability regions of different SiO\u2082 phases.<\/p>\n\n\n\n<p>Understanding these triple points is essential for applications involving SiO\u2082, such as in materials science and geology, where precise control over phase transitions can influence the properties and functionalities of silica-based materials.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The unary phase diagram for SiO2 is Locate the triple point where solid, liquid, and vapor coexist and give the temperature and the type of solid present. What do the other \u201ctriple\u201d points indicate? The Correct Answer and Explanation is : In the unary phase diagram of silicon dioxide (SiO\u2082), several key triple points exist [&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-195342","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/195342","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=195342"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/195342\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=195342"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=195342"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=195342"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}