{"id":46938,"date":"2025-05-22T15:45:46","date_gmt":"2025-05-22T10:15:46","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=46938"},"modified":"2025-05-22T17:53:43","modified_gmt":"2025-05-22T12:23:43","slug":"liquid-carbon","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/liquid-carbon\/","title":{"rendered":"Liquid Carbon"},"content":{"rendered":"<h2>Liquid Carbon Latest News<\/h2>\n<p>Scientists have for the first time observed the atomic structure of liquid carbon using the high-power DIPOLE 100-X laser and ultrashort X-ray pulses from the European XFEL (X-ray Free Electron Laser) in Germany.<\/p>\n<h2>About Liquid Carbon<\/h2>\n<ul>\n<li><strong>Liquid carbon<\/strong>\u00a0refers to\u00a0<strong>carbon in a liquid state<\/strong>, which is\u00a0<strong>not naturally stable<\/strong>\u00a0under normal temperature and pressure conditions.<\/li>\n<li>Carbon typically exists in\u00a0<strong>solid forms<\/strong>\u00a0like\u00a0<strong>graphite<\/strong>,\u00a0<strong>diamond<\/strong>, or as\u00a0<strong>gas (CO\u2082)<\/strong>\u00a0when oxidised.<\/li>\n<li><strong>Liquid carbon\u00a0<\/strong>is a transient phase, and its study is important for understanding:\n<ul>\n<li><strong>Planetary core compositions<\/strong>\u00a0(e.g.,\u00a0<strong>carbon-rich exoplanets<\/strong>),<\/li>\n<li><strong>High-energy astrophysical processes<\/strong>,<\/li>\n<li>And\u00a0<strong>high-temperature material behaviour<\/strong>\u00a0in\u00a0<strong>laser-material interactions<\/strong>\u00a0and\u00a0<strong>nuclear science<\/strong>.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>Why Liquid Carbon Is Hard to Study<\/h2>\n<ul>\n<li><strong>Carbon does not melt under normal pressure;\u00a0<\/strong>it transitions directly from solid to gas (sublimation), making lab-based liquid-phase studies almost impossible.<\/li>\n<li><strong>Liquid carbon only forms under extreme conditions<\/strong>:\n<ul>\n<li><strong>Temperatures ~4500\u00b0C<\/strong>,<\/li>\n<li><strong>Very high pressures<\/strong>,<\/li>\n<li>Conditions that no\u00a0<strong>conventional container<\/strong>\u00a0can withstand.<\/li>\n<\/ul>\n<\/li>\n<li>Thus,\u00a0<strong>laser-driven compression<\/strong>\u00a0was employed to briefly\u00a0<strong>liquefy solid carbon for nanoseconds<\/strong>, enabling real-time measurement.<\/li>\n<\/ul>\n<h2>Experimental Technique and Innovation<\/h2>\n<ul>\n<li>The\u00a0<strong>DIPOLE 100-X laser<\/strong>\u00a0was used to generate\u00a0<strong>compression waves<\/strong>\u00a0through the carbon sample, converting it to the\u00a0<strong>liquid state for a billionth of a second<\/strong>.<\/li>\n<li>During this fleeting moment, the\u00a0<strong>European XFEL\u2019s ultrashort X-ray pulse<\/strong>\u00a0was used to\u00a0<strong>irradiate the sample<\/strong>, causing the\u00a0<strong>X-ray light to diffract off atoms<\/strong>.<\/li>\n<li>The resulting\u00a0<strong>diffraction pattern<\/strong>\u00a0revealed the\u00a0<strong>atomic arrangement<\/strong>\u00a0of liquid carbon.<\/li>\n<li><strong>Multiple iterations<\/strong>\u00a0of the experiment with varying delays and conditions were used to create a\u00a0<strong>step-by-step &#8220;movie&#8221;<\/strong>\u00a0of the\u00a0<strong>solid-to-liquid transition<\/strong>.<\/li>\n<\/ul>\n<h2>Major Findings of the Study<\/h2>\n<ul>\n<li><strong>Liquid carbon has a water-like structure<\/strong>, with\u00a0<strong>four nearest atomic neighbours<\/strong>, resembling the structure of\u00a0<strong>solid diamond<\/strong>.<\/li>\n<li>The experiment\u00a0<strong>confirmed earlier theoretical simulations<\/strong>\u00a0and helped to\u00a0<strong>precisely determine the melting point<\/strong>\u00a0of carbon under high pressure.<\/li>\n<li>These insights are important for:\n<ul>\n<li><strong>Planetary science<\/strong>, as liquid carbon exists in the\u00a0<strong>interiors of planets<\/strong>.<\/li>\n<li><strong>Nuclear fusion technology<\/strong>, where carbon-based materials are often involved under extreme conditions.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>Liquid Carbon FAQs<\/h2>\n<p><strong>Q1:\u00a0<\/strong>What is Liquid Carbon?<br \/>\n<strong>Ans:<\/strong>\u00a0Liquid Carbon refers to carbon in a liquid state, which is not naturally stable under normal temperature and pressure.<\/p>\n<p><strong>Q2:\u00a0<\/strong>Why is Liquid Carbon rare?<\/p>\n<p><strong>Ans:<\/strong>\u00a0It typically forms only under extreme conditions like temperatures above 4500\u00b0C and very high pressure, making it transient and difficult to study in laboratory settings.<\/p>\n<p><strong>Source:\u00a0<\/strong><a href=\"https:\/\/phys.org\/news\/2025-05-liquid-carbon.html\" target=\"_blank\" rel=\"nofollow noopener\">PHY<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Liquid carbon refers to carbon in a liquid state, which is not naturally stable under normal temperature and pressure conditions.<\/p>\n","protected":false},"author":8,"featured_media":46945,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[351,21,22,350],"class_list":{"0":"post-46938","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-prelims-current-affairs","8":"tag-liquid-carbon","9":"tag-prelims-pointers","10":"tag-upsc-current-affairs","11":"tag-upsc-prelims-current-afffairs","12":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/46938","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=46938"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/46938\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/46945"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=46938"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=46938"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=46938"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}