{"id":22237,"date":"2020-05-01T22:18:31","date_gmt":"2020-05-01T22:18:31","guid":{"rendered":"https:\/\/www.sohag-univ.edu.eg\/facsci\/?p=22237"},"modified":"2020-05-01T22:19:09","modified_gmt":"2020-05-01T22:19:09","slug":"%d8%a7%d9%84%d9%81%d9%8a%d8%b2%d9%8a%d8%a7%d8%a1-%d9%88%d8%a7%d9%84%d9%83%d9%8a%d9%85%d9%8a%d8%a7%d8%a1-%d8%a7%d9%84%d9%83%d9%8a%d9%85%d9%8a%d8%a7%d8%a1-%d8%a7%d9%84%d9%81%d9%8a%d8%b2%d9%8a%d8%a7","status":"publish","type":"post","link":"https:\/\/sci.sohag-univ.edu.eg\/main\/%d8%a7%d9%84%d9%81%d9%8a%d8%b2%d9%8a%d8%a7%d8%a1-%d9%88%d8%a7%d9%84%d9%83%d9%8a%d9%85%d9%8a%d8%a7%d8%a1-%d8%a7%d9%84%d9%83%d9%8a%d9%85%d9%8a%d8%a7%d8%a1-%d8%a7%d9%84%d9%81%d9%8a%d8%b2%d9%8a%d8%a7\/","title":{"rendered":"\u0627\u0644\u0641\u064a\u0632\u064a\u0627\u0621 \u0648\u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0621 \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0621 \u0627\u0644\u0641\u064a\u0632\u064a\u0627\u0626\u064a\u0629 222\u0643 \u0623.\u062f. \u062d\u0633\u0646\u064a\u0629 \u0645\u0647\u0631\u0627\u0646 \u0623.\u062f. \u0644\u0628\u0646\u064a \u0639\u0628\u062f\u0627\u0644\u0645\u062d\u0633\u0646 \u0623.\u062f. \u0637\u0627\u0631\u0642 \u0637\u0647"},"content":{"rendered":"<p dir=\"ltr\" style=\"text-align: center;\"><strong>First Model<\/strong><br \/>\n(1) The relation between chemistry and thermodynamics is a big story. What do you know about it?<br \/>\n(2) Discuss first order reactions and second order reactions.<br \/>\n(3) Write on parallel reactions and series reactions.<br \/>\n(4) C and D are two partly miscible liquids. E is a substance, which dissolves without chemical reaction in both C and D.<br \/>\n(a) By means of diagrams show the possible effect of temperature changes on an equilibrium mixture of C and D.<br \/>\n(b) Describe what you would expect to occur when varying amounts of E are shaken with a mixture of C and D.<br \/>\nApply the Phase Rule to the resulting mixtures of C, D and E.<\/p>\n<p dir=\"ltr\" style=\"text-align: center;\"><strong>Second Model<\/strong><br \/>\n(1) Why are chemists interested in studying Thermochemistry?<br \/>\n(2) Discuss first order reactions and third order reactions.<br \/>\n(3) Illustrate the relations between temperature, reaction rate and activation energy.<br \/>\n(4) Derive the Phase Rule and explain the terms involved. Sketch a phase diagram for thallium and mercury using the following facts. Label each area, line and point. [M.P. of Thallium = 303\u00b0C, M.P. of mercury = &#8211; 39\u00b0C, M.P. of Tl2Hg5 = 15\u00b0C, Eutectic for Tl\/Tl2Hg5 = 0.4\u00b0C, at 41 % Tl by weight. Thallium lowers the M.P. of Mercury to a minimum of &#8211; 60\u00b0C at 8 % Tl]. (Hg = 200.6, Tl = 204.4).<\/p>\n<p dir=\"ltr\" style=\"text-align: center;\"><strong>Third Model<\/strong><br \/>\n(1) What thermochemical processes are observed every day?<br \/>\n(2) Discuss first order reactions and zero order reactions.<br \/>\n(3) Explain two methods to determine the reaction order.<br \/>\n(4) Draw and discuss the phase diagrams (temperature \u2013 composition) for the following condensed systems, labeling each region to show phases in equilibrium within them: (a) Magnesium (M.P. 651\uf0b0C) and lead (327\uf0b0C) form PbMg2, which melts at 530\uf0b0C; (b) Magnesium and Nickel (1452\uf0b0C) form a compound MgNi2 that melts at 1145\uf0b0C and a compound Mg2Ni that decomposes at 770\uf0b0C into a liquid containing 50% (by weight) of Ni and the other compound. The eutectic are at 23% Ni and 510\uf0b0C and at 89% Ni and 1080\uf0b0C.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>First Model (1) The relation between chemistry and thermodynamics is a big story. What do you know about it? (2) Discuss first order reactions and second order reactions. (3) Write on parallel reactions and series reactions. (4) C and D are two partly miscible liquids. E is a substance, which dissolves without chemical reaction in [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"zakra_page_container_layout":"customizer","zakra_page_sidebar_layout":"customizer","zakra_remove_content_margin":false,"zakra_sidebar":"customizer","zakra_transparent_header":"customizer","zakra_logo":0,"zakra_main_header_style":"default","zakra_menu_item_color":"","zakra_menu_item_hover_color":"","zakra_menu_item_active_color":"","zakra_menu_active_style":"","zakra_page_header":true,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-22237","post","type-post","status-publish","format-standard","hentry","category-1"],"rttpg_featured_image_url":null,"rttpg_author":{"display_name":"admin","author_link":"https:\/\/sci.sohag-univ.edu.eg\/main\/author\/admin\/"},"rttpg_comment":1,"rttpg_category":"<a href=\"https:\/\/sci.sohag-univ.edu.eg\/main\/category\/%d8%a7%d8%ae%d8%a8%d8%a7%d8%b1-%d9%82%d8%b3%d9%85-%d8%a7%d9%84%d9%81%d9%8a%d8%b2%d9%8a%d8%a7%d8%a1\/\" rel=\"category tag\">\u0627\u062e\u0628\u0627\u0631 \u0642\u0633\u0645 \u0627\u0644\u0641\u064a\u0632\u064a\u0627\u0621<\/a>","rttpg_excerpt":"First Model (1) The relation between chemistry and thermodynamics is a big story. What do you know about it? (2) Discuss first order reactions and second order reactions. (3) Write on parallel reactions and series reactions. (4) C and D are two partly miscible liquids. E is a substance, which dissolves without chemical reaction in&hellip;","_links":{"self":[{"href":"https:\/\/sci.sohag-univ.edu.eg\/main\/wp-json\/wp\/v2\/posts\/22237","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sci.sohag-univ.edu.eg\/main\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sci.sohag-univ.edu.eg\/main\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sci.sohag-univ.edu.eg\/main\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sci.sohag-univ.edu.eg\/main\/wp-json\/wp\/v2\/comments?post=22237"}],"version-history":[{"count":2,"href":"https:\/\/sci.sohag-univ.edu.eg\/main\/wp-json\/wp\/v2\/posts\/22237\/revisions"}],"predecessor-version":[{"id":22240,"href":"https:\/\/sci.sohag-univ.edu.eg\/main\/wp-json\/wp\/v2\/posts\/22237\/revisions\/22240"}],"wp:attachment":[{"href":"https:\/\/sci.sohag-univ.edu.eg\/main\/wp-json\/wp\/v2\/media?parent=22237"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sci.sohag-univ.edu.eg\/main\/wp-json\/wp\/v2\/categories?post=22237"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sci.sohag-univ.edu.eg\/main\/wp-json\/wp\/v2\/tags?post=22237"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}