{"id":3865,"date":"2023-01-09T10:33:01","date_gmt":"2023-01-09T10:33:01","guid":{"rendered":"https:\/\/8thclass.deltapublications.in\/?page_id=3865"},"modified":"2025-09-22T04:39:16","modified_gmt":"2025-09-22T04:39:16","slug":"s-6-a-what-is-combustion","status":"publish","type":"page","link":"https:\/\/8thclass.deltapublications.in\/index.php\/s-6-a-what-is-combustion\/","title":{"rendered":"s-6.a What Is Combustion?"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-text-align-center has-text-color\" style=\"color:#00056d;text-transform:uppercase\"><strong>What Is Combustion?<\/strong><\/h2>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div style=\"position: relative; width: 100%; height: 0; padding-top: 56.2500%;\n padding-bottom: 0; box-shadow: 0 2px 8px 0 rgba(63,69,81,0.16); margin-top: 1.6em; margin-bottom: 0.9em; overflow: hidden;\n border-radius: 8px; will-change: transform;\">\n  <iframe loading=\"lazy\" style=\"position: absolute; width: 100%; height: 100%; top: 0; left: 0; border: none; padding: 0;margin: 0;\"\n    src=\"https:\/\/www.canva.com\/design\/DAF4LdgVa_0\/rO8OmcP2x8Y8jx9vlUyqjg\/watch?embed\" allowfullscreen=\"allowfullscreen\" allow=\"fullscreen\">\n  <\/iframe>\n<\/div>\n<a href=\"https:&#x2F;&#x2F;www.canva.com&#x2F;design&#x2F;DAF4LdgVa_0&#x2F;rO8OmcP2x8Y8jx9vlUyqjg&#x2F;watch?utm_content=DAF4LdgVa_0&amp;utm_campaign=designshare&amp;utm_medium=embeds&amp;utm_source=link\" target=\"_blank\" rel=\"noopener\">what is combustion<\/a> by Delta publications\n<\/div>\n<\/div>\n\n\n\n<p class=\"has-text-color has-link-color has-huge-font-size wp-elements-665588061999e61de138a3722b67a7db\" style=\"color:#74008b\"><strong>key notes<\/strong> :<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"670\" height=\"300\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/10\/Untitled-design-1-1.png\" alt=\"\" class=\"wp-image-12030\" style=\"width:601px;height:auto\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/10\/Untitled-design-1-1.png 670w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/10\/Untitled-design-1-1-300x134.png 300w\" sizes=\"auto, (max-width: 670px) 100vw, 670px\" \/><\/figure><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-9257ae41069cc36c8deec2f950160a03\" style=\"color:#000060\"><strong>Definition of Combustion<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\">Combustion is a chemical reaction in which a substance (fuel) reacts with oxygen to produce heat and light. This process is commonly known as burning.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-b3f93359cb5e7d1d16044ef7a5d987d5\" style=\"color:#000060\"><strong>Types of Combustion<\/strong>:<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong>Complete Combustion<\/strong>: Occurs when there is a sufficient supply of oxygen. The products are carbon dioxide (CO\u2082) and water (H\u2082O).<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Example:<\/strong> CH\u2084 + 2O\u2082 \u2192 CO\u2082 + 2H\u2082O (Methane combustion)<\/li>\n<\/ul>\n\n\n\n<p class=\"has-large-font-size\"><strong>Incomplete Combustion<\/strong>: Happens when oxygen supply is limited. The products can include carbon monoxide (CO), soot (carbon), and water.<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Example:<\/strong> 2CH\u2084 + 3O\u2082 \u2192 2CO + 4H\u2082O (Methane combustion with insufficient oxygen)<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-c8332d15d1da09bf142414fceb45bcb5\" style=\"color:#000060\"><strong>Conditions for Combustion<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Fuel<\/strong>: A substance that burns, such as wood, gas, or coal.<\/li>\n\n\n\n<li><strong>Oxygen<\/strong>: Necessary for the reaction to occur. Air is about 21% oxygen.<\/li>\n\n\n\n<li><strong>Heat<\/strong>: Initial energy to start the reaction, known as activation energy.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-1135f29c528f4916bd28a441911117e5\" style=\"color:#000060\"><strong>Exothermic Reaction<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Combustion is an exothermic reaction, meaning it releases energy in the form of heat and light.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-1b4ab38bad5c1514800e9b960d4c3fe6\" style=\"color:#000060\"><strong>Examples of Combustion<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Burning wood in a fireplace.<\/li>\n\n\n\n<li>Lighting a match.<\/li>\n\n\n\n<li>The burning of fossil fuels (coal, oil, natural gas) in vehicles, power plants, and homes.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-336c107b2b3a829ef29c1e0c68da872c\" style=\"color:#000060\"><strong>Importance of Combustion<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Energy Source<\/strong>: Provides energy for heating, cooking, and powering vehicles.<\/li>\n\n\n\n<li><strong>Industrial Use<\/strong>: Combustion reactions are used in various industries to produce energy and materials.<\/li>\n\n\n\n<li><strong>Environmental Impact<\/strong>: Incomplete combustion can lead to air pollution, such as the formation of carbon monoxide and particulate matter.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-679f755bbd0825b99ce858b545bb1d7a\" style=\"color:#000060\"><strong>Safety Considerations<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Proper ventilation is needed to avoid the buildup of dangerous gases like carbon monoxide in incomplete combustion.<\/li>\n\n\n\n<li>Fire safety practices are important to prevent uncontrolled combustion, such as fires.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-4568a649b1d131b2117a5c69bf991799\" style=\"color:#000060\"><strong>Combustion and the Carbon Cycle<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>The carbon dioxide produced during combustion is a greenhouse gas that contributes to climate change, as it traps heat in the Earth&#8217;s atmosphere.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-large-font-size\" style=\"color:#d90000\"><strong>Let&#8217;s practice!<\/strong><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/wordwall.net\/play\/81560\/469\/700\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-65.png\" alt=\"\" class=\"wp-image-7625\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-65.png 500w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-65-300x300.png 300w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-65-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/wordwall.net\/play\/81646\/208\/229\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-64.png\" alt=\"\" class=\"wp-image-7626\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-64.png 500w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-64-300x300.png 300w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-64-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>What Is Combustion? what is combustion by Delta publications key notes : Definition of Combustion: Types of Combustion: Complete Combustion: Occurs when there is a sufficient supply of oxygen. The products are carbon dioxide (CO\u2082) and water (H\u2082O). Incomplete Combustion: Happens when oxygen supply is limited. The products can include carbon monoxide (CO), soot (carbon),<a class=\"more-link\" href=\"https:\/\/8thclass.deltapublications.in\/index.php\/s-6-a-what-is-combustion\/\">Continue reading <span class=\"screen-reader-text\">&#8220;s-6.a What Is Combustion?&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-3865","page","type-page","status-publish","hentry","entry"],"aioseo_notices":[],"_hostinger_reach_plugin_has_subscription_block":false,"_hostinger_reach_plugin_is_elementor":false,"_links":{"self":[{"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3865","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/comments?post=3865"}],"version-history":[{"count":23,"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3865\/revisions"}],"predecessor-version":[{"id":21501,"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3865\/revisions\/21501"}],"wp:attachment":[{"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/media?parent=3865"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}