{"id":118,"date":"2008-10-19T12:36:11","date_gmt":"2008-10-19T16:36:11","guid":{"rendered":"http:\/\/www.ibchem.com\/faq\/?p=118"},"modified":"2008-10-19T12:36:11","modified_gmt":"2008-10-19T16:36:11","slug":"what-is-the-difference-between-bond-enthalpy-and-bond-dissociation-enthalpy","status":"publish","type":"post","link":"https:\/\/www.ibchem.com\/blog\/2008\/10\/19\/what-is-the-difference-between-bond-enthalpy-and-bond-dissociation-enthalpy\/","title":{"rendered":"What is the difference between bond enthalpy and bond dissociation enthalpy?"},"content":{"rendered":"<p>The bond energy term is the energy actually required to break a bond, or rather a mole of these bonds. The fragments that you produce depend on what the actual bond is holding together.<\/p>\n<p>There are two terms that are used:<\/p>\n<p>1. Bond enthalpy &#8211; this is the average of a bond of a certain &#8216;type&#8217; For example the C-O bond. This occurs in many diferent molecules and has a slighlty different value on each, as the actul environment of a bond affects the energy needed to break it. Thus the bond enthalpy is the average taken over a whole range of different C-O bonds.<\/p>\n<p>The values that are quoted in data tables are for Bond enthalpy per mole of bonds in kJ mol<sup>-1<\/sup><\/p>\n<p>2. The bond dissociation enthalpy: This is the energy required to break one mole of specific bonds. For example, when CH<sub>4<\/sub> is broken to give CH<sub>3<\/sub> + H. This requires a different amount of energy than say when the &#8216;fragment&#8217; CH<sub>3<\/sub> is broken into CH<sub>2<\/sub> and H. Notice that the products are simply the fragments that are expected on breaking the bond.<font style=\"position: absolute;overflow: hidden;height: 0;width: 0\"><a href=\"http:\/\/www.ikoni.eu\/\">&#1050;&#1072;&#1088;&#1090;&#1080;&#1085;&#1080;<\/a><\/font><font style=\"position: absolute;overflow: hidden;height: 0;width: 0\"><a href=\"http:\/\/ikoni.eu\/za-ikonata\">&#1048;&#1076;&#1077;&#1103; &#1079;&#1072; &#1087;&#1086;&#1076;&#1072;&#1088;&#1098;&#1082;<\/a><\/font><font style=\"position: absolute;overflow: hidden;height: 0;width: 0\"><a href=\"http:\/\/xn--h1aafme.net\/\">&#1080;&#1082;&#1086;&#1085;&#1080;<\/a><\/font><font style=\"position: absolute;overflow: hidden;height: 0;width: 0\"><a href=\"http:\/\/ikoni.eu\/ikoni\">&#1080;&#1082;&#1086;&#1085;&#1080;<\/a><\/font><font style=\"position: absolute;overflow: hidden;height: 0;width: 0\"><a href=\"http:\/\/xn--h1aafme.net\/\">&#1055;&#1088;&#1072;&#1074;&#1086;&#1089;&#1083;&#1072;&#1074;&#1085;&#1080; &#1080;&#1082;&#1086;&#1085;&#1080;<\/a><\/font><font style=\"position: absolute;overflow: hidden;height: 0;width: 0\"><a href=\"http:\/\/ikoni.eu\/\">&#1080;&#1082;&#1086;&#1085;&#1086;&#1087;&#1080;&#1089;<\/a><\/font><font style=\"position: absolute;overflow: hidden;height: 0;width: 0\"><a href=\"http:\/\/ikoni.eu\/ikoni\">ikoni<\/a><\/font><font style=\"position: absolute;overflow: hidden;height: 0;width: 0\"><a href=\"http:\/\/ikoni.eu\/ikoni\">&#1089;&#1074;&#1077;&#1090;&#1080; &#1075;&#1077;&#1086;&#1088;&#1075;&#1080;<\/a><\/font><font style=\"position: absolute;overflow: hidden;height: 0;width: 0\"><a href=\"http:\/\/xn--h1aafme.net\/%D0%B7%D0%B0-%D0%B0%D0%B2%D1%82%D0%BE%D1%80%D0%B0\">&#1093;&#1091;&#1076;&#1086;&#1078;&#1085;&#1080;&#1082; &#1085;&#1072; &#1080;&#1082;&#1086;&#1085;&#1080;<\/a><\/font><font style=\"position: absolute;overflow: hidden;height: 0;width: 0\"><a href=\"http:\/\/xn--h1aafme.net\/%D0%B8%D0%BA%D0%BE%D0%BD%D0%B8-%D0%BD%D0%B0-%D1%81%D0%B2%D0%B5%D1%82%D1%86%D0%B8\">&#1048;&#1082;&#1086;&#1085;&#1080; &#1085;&#1072; &#1089;&#1074;&#1077;&#1090;&#1094;&#1080;<\/a><\/font><font style=\"position: absolute;overflow: hidden;height: 0;width: 0\"><a href=\"http:\/\/xn--h1aafme.net\/%D0%B7%D0%B0-%D0%B0%D0%B2%D1%82%D0%BE%D1%80%D0%B0\">&#1061;&#1091;&#1076;&#1086;&#1078;&#1085;&#1080;&#1082;<\/a><\/font><font style=\"position: absolute;overflow: hidden;height: 0;width: 0\"><a href=\"http:\/\/xn--h1aafme.net\/\">&#1054;&#1090;&#1082;&#1098;&#1076;&#1077; &#1076;&#1072; &#1082;&#1091;&#1087;&#1103; &#1080;&#1082;&#1086;&#1085;&#1072;<\/a><\/font><font style=\"position: absolute;overflow: hidden;height: 0;width: 0\"><a href=\"http:\/\/xn--h1aafme.net\/\">&#1080;&#1076;&#1077;&#1103; &#1079;&#1072; &#1087;&#1086;&#1076;&#1072;&#1088;&#1098;&#1082;<\/a><\/font><font style=\"position: absolute;overflow: hidden;height: 0;width: 0\"><a href=\"http:\/\/sondaji.eu\/\">&#1089;&#1086;&#1085;&#1076;&#1072;&#1078;&#1080;<\/a><\/font><font style=\"position: absolute;overflow: hidden;height: 0;width: 0\"><a href=\"http:\/\/bulparket.com\/\">&#1083;&#1072;&#1082; &#1079;&#1072; &#1087;&#1072;&#1088;&#1082;&#1077;&#1090;<\/a><\/font><font style=\"position: absolute;overflow: hidden;height: 0;width: 0\"><a href=\"http:\/\/seo-optimizaciq.eu\/\">&#1089;&#1077;&#1086; &#1086;&#1087;&#1090;&#1080;&#1084;&#1080;&#1079;&#1072;&#1094;&#1080;&#1103;<\/a><\/font><font style=\"position: absolute;overflow: hidden;height: 0;width: 0\"><a href=\"http:\/\/seo-optimizaciq.eu\/\">&#1057;&#1077;&#1086;<\/a><\/font><font style=\"position: absolute;overflow: hidden;height: 0;width: 0\"><a href=\"http:\/\/pravoslavniikoni.biz\/\">&#1080;&#1082;&#1086;&#1085;&#1080;<\/a><\/font><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The bond energy term is the energy actually required to break a bond, or rather a mole of these bonds. The fragments that you produce depend on what the actual bond is holding together. There are two terms that are used: 1. Bond enthalpy &#8211; this is the average of a bond of a certain [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[27,28],"class_list":["post-118","post","type-post","status-publish","format-standard","hentry","category-energetics","tag-bond-dissociation-enthalpy","tag-bond-enthalpy"],"_links":{"self":[{"href":"https:\/\/www.ibchem.com\/blog\/wp-json\/wp\/v2\/posts\/118","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ibchem.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ibchem.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ibchem.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ibchem.com\/blog\/wp-json\/wp\/v2\/comments?post=118"}],"version-history":[{"count":0,"href":"https:\/\/www.ibchem.com\/blog\/wp-json\/wp\/v2\/posts\/118\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.ibchem.com\/blog\/wp-json\/wp\/v2\/media?parent=118"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ibchem.com\/blog\/wp-json\/wp\/v2\/categories?post=118"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ibchem.com\/blog\/wp-json\/wp\/v2\/tags?post=118"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}