{"id":149865,"date":"2022-03-21T10:49:49","date_gmt":"2022-03-21T05:19:49","guid":{"rendered":"https:\/\/infinitylearn.com\/surge\/photochemical-reactions-introduction-examples-and-laws-of-photochemistry\/"},"modified":"2025-05-29T10:11:52","modified_gmt":"2025-05-29T04:41:52","slug":"photochemical-reactions-introduction-examples-and-laws-of-photochemistry","status":"publish","type":"post","link":"https:\/\/infinitylearn.com\/surge\/chemistry\/photochemical-reactions\/","title":{"rendered":"Photochemical Reactions &#8211; Introduction, Examples and Laws of Photochemistry"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_37 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" style=\"display: none;\"><label for=\"item\" aria-label=\"Table of Content\"><span style=\"display: flex;align-items: center;width: 35px;height: 30px;justify-content: center;\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/label><input type=\"checkbox\" id=\"item\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' style='display:block'><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/infinitylearn.com\/surge\/chemistry\/photochemical-reactions\/#What_are_Photochemical_Reactions\" title=\"What are Photochemical Reactions?\">What are Photochemical Reactions?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/infinitylearn.com\/surge\/chemistry\/photochemical-reactions\/#Examples_of_Photochemical_Reactions\" title=\"Examples of Photochemical Reactions\">Examples of Photochemical Reactions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/infinitylearn.com\/surge\/chemistry\/photochemical-reactions\/#Laws_of_Photochemistry\" title=\"Laws of Photochemistry\">Laws of Photochemistry<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/infinitylearn.com\/surge\/chemistry\/photochemical-reactions\/#Tips_to_Study_Photochemical_Reactions\" title=\"Tips to Study Photochemical Reactions\">Tips to Study Photochemical Reactions<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_are_Photochemical_Reactions\"><\/span>What are Photochemical Reactions?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>A photochemical reaction is a chemical reaction that is initiated by light. Sunlight is made up of many different colors of light, each of which has a different wavelength. When light shines on a molecule, it can excite the electrons in that molecule. When the electrons are excited, they can move around more freely and can react with other molecules. Photochemical Reactions &#8211; Introduction Examples and Laws of Photochemistry.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Examples_of_Photochemical_Reactions\"><\/span>Examples of Photochemical Reactions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>One example of a photochemical reaction is the decomposition of hydrogen peroxide into water and oxygen gas. This reaction is catalyzed by the presence of light and a catalyst, and it occurs more quickly in the presence of ultraviolet light. Another example of a photochemical reaction is the formation of ozone from oxygen gas. This reaction is catalyzed by light and occurs more quickly in the presence of ultraviolet light.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Laws_of_Photochemistry\"><\/span>Laws of Photochemistry<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>In any chemical reaction, the atoms that make up the molecules are rearranged into different molecules. In photochemistry, light energy is used to initiate or accelerate chemical reactions. The photons of light energy cause the atoms to become excited and to jump to a higher energy level. When the atoms return to their normal energy level, they release the energy in the form of heat, light, or some other form of energy.<\/p>\n<p>The energy of the light determines the type of reaction that will take place. Ultraviolet light will cause certain atoms to react, while visible light will not. The wavelength of the light is also important. Shorter wavelengths have more energy than longer wavelengths.<\/p>\n<p>Some of the most common reactions that occur in photochemistry are the decomposition of molecules, the formation of new bonds, and the rearrangement of atoms. Decomposition reactions occur when a molecule is broken down into two or more smaller molecules. Formation reactions occur when two or more atoms are joined together to form a new molecule. Rearrangement reactions occur when atoms are moved from one molecule to another.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Tips_to_Study_Photochemical_Reactions\"><\/span>Tips to Study Photochemical Reactions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Some tips to study photochemical reactions include understanding the types of energy that can be involved in a photochemical reaction, being able to identify the reactants and products, and understanding the role of light in the reaction. Additionally, it is important to understand the kinetics of the photochemical reaction in order to predict the rate of the reaction.<\/p>\n<p>Photochemical Reactions &#8211; Introduction Examples and Laws of Photochemistry.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What are Photochemical Reactions? A photochemical reaction is a chemical reaction that is initiated by light. Sunlight is made up [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"Photochemical Reactions - Introduction Examples and Laws of Photochemistry","_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"Learn about Photochemical Reactions - Introduction Examples and Laws of Photochemistry explained by subject experts on infinitylearn.com.","custom_permalink":"chemistry\/photochemical-reactions\/"},"categories":[1],"tags":[],"table_tags":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Photochemical Reactions - Introduction, Examples and Laws of Photochemistry - Infinity Learn by Sri Chaitanya<\/title>\n<meta name=\"description\" content=\"Learn about Photochemical Reactions - Introduction Examples and Laws of Photochemistry explained by subject experts on infinitylearn.com.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/infinitylearn.com\/surge\/chemistry\/photochemical-reactions\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Photochemical Reactions - 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