{"id":3627,"date":"2023-01-09T10:07:04","date_gmt":"2023-01-09T10:07:04","guid":{"rendered":"https:\/\/9thclass.deltapublications.in\/?page_id=3627"},"modified":"2025-07-26T07:10:00","modified_gmt":"2025-07-26T07:10:00","slug":"s-1-d-matter-changes-its-state","status":"publish","type":"page","link":"https:\/\/9thclass.deltapublications.in\/index.php\/s-1-d-matter-changes-its-state\/","title":{"rendered":"S-1.d Matter Changes Its State"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-text-align-center has-text-color\" style=\"color:#00056d;text-transform:uppercase\"><strong>Matter Changes Its State<\/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<iframe width=\"560\" height=\"315\" \nsrc=\"https:\/\/www.youtube.com\/embed\/yXricAcCUKc?rel=0&#038;si=BDh1IFFQL52HyrNs\" \ntitle=\"YouTube video player\" frameborder=\"0\" \nallow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" \nreferrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen>\n<\/iframe>\n<\/div>\n<\/div>\n\n\n\n<p class=\"has-text-color has-link-color has-huge-font-size wp-elements-87982a1885f28362b0345dcf26d18c66\" style=\"color:#74008b\"><strong>Key notes :<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-center has-text-color has-background has-link-color has-large-font-size wp-elements-b2d492794c91ef1f84275a84703d76a1\" style=\"color:#000060;background-color:#dfc816\"><strong>Definition of Matter States<\/strong>:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"609\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-42-1024x609.png\" alt=\"\" class=\"wp-image-16015\" style=\"width:442px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-42-1024x609.png 1024w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-42-300x178.png 300w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-42-768x457.png 768w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-42.png 1500w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Matter exists in three primary states: <strong>solid<\/strong>, <strong>liquid<\/strong>, and <strong>gas<\/strong>.<\/li>\n\n\n\n<li>The state depends on the arrangement, movement, and energy of particles.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-align-center has-text-color has-background has-link-color has-large-font-size wp-elements-144d636ccb7b179a6d8077791a719bd6\" style=\"color:#000060;background-color:#dfc816\"><strong>Interconversion of States<\/strong>:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"674\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-43-1024x674.png\" alt=\"\" class=\"wp-image-16017\" style=\"width:346px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-43-1024x674.png 1024w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-43-300x197.png 300w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-43-768x506.png 768w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-43.png 1232w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Matter can change states<\/strong> (e.g., solid to liquid, liquid to gas) due to changes in temperature or pressure.<\/li>\n\n\n\n<li>These changes are <strong>physical changes<\/strong>, as they don\u2019t alter the chemical composition.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-align-center has-text-color has-background has-link-color has-large-font-size wp-elements-ff2a21dc4b84b679fa98ba623c39d426\" style=\"color:#000060;background-color:#dfc816\"><strong>Processes of State Changes<\/strong>:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"355\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-44.png\" alt=\"\" class=\"wp-image-16018\" style=\"width:365px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-44.png 500w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-44-300x213.png 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Melting<\/strong>: Solid \u2192 Liquid (e.g., ice melting into water).<\/li>\n\n\n\n<li><strong>Freezing<\/strong>: Liquid \u2192 Solid (e.g., water freezing into ice).<\/li>\n\n\n\n<li><strong>Evaporation<\/strong>: Liquid \u2192 Gas (e.g., water turning into vapor at its surface).<\/li>\n\n\n\n<li><strong>Boiling<\/strong>: Liquid \u2192 Gas (e.g., water boiling at 100\u00b0C).<\/li>\n\n\n\n<li><strong>Condensation<\/strong>: Gas \u2192 Liquid (e.g., water vapor condensing into droplets).<\/li>\n\n\n\n<li><strong>Sublimation<\/strong>: Solid \u2192 Gas directly (e.g., dry ice sublimating into carbon dioxide gas).<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-align-center has-text-color has-background has-link-color has-large-font-size wp-elements-65cc33c6b5996da66d5c2acecaba106d\" style=\"color:#000060;background-color:#dfc816\"><strong>Role of Temperature<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Adding heat increases the kinetic energy of particles, causing them to overcome intermolecular forces and change state.<\/li>\n\n\n\n<li>Removing heat decreases kinetic energy, allowing particles to come closer and change state.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-align-center has-text-color has-background has-link-color has-large-font-size wp-elements-b3496cf651ba39bc9400f2326ee4eff8\" style=\"color:#000060;background-color:#dfc816\"><strong>Latent Heat<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Latent Heat of Fusion<\/strong>: The heat required to change 1 kg of a solid into a liquid at its melting point.<\/li>\n\n\n\n<li><strong>Latent Heat of Vaporization<\/strong>: The heat required to change 1 kg of liquid into gas at its boiling point.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-align-center has-text-color has-background has-link-color has-large-font-size wp-elements-a9655191a16bfb15b73c342544a449ce\" style=\"color:#000060;background-color:#dfc816\"><strong>Effect of Pressure<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Increasing pressure can compress particles and force matter into a denser state (e.g., gas to liquid).<\/li>\n\n\n\n<li>Decreasing pressure allows particles to expand and move apart (e.g., liquid to gas).<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-align-center has-text-color has-background has-link-color has-large-font-size wp-elements-fdd533c10750fb6cc5042a1d2a89ac01\" style=\"color:#000060;background-color:#dfc816\"><strong>Examples in Daily Life<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Boiling water for cooking.<\/li>\n\n\n\n<li>Ice cubes melting in a drink.<\/li>\n\n\n\n<li>Fog formation from condensation.<\/li>\n\n\n\n<li>Sublimation of mothballs or dry ice.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-align-center has-text-color has-background has-link-color has-large-font-size wp-elements-acd4bf5d6a660cffc2b82bb9d80f1364\" style=\"color:#000060;background-color:#dfc816\"><strong>Energy and State Changes<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>State changes are energy-dependent:\n<ul class=\"wp-block-list\">\n<li><strong>Endothermic Processes<\/strong>: Absorb energy (e.g., melting, evaporation).<\/li>\n\n\n\n<li><strong>Exothermic Processes<\/strong>: Release energy (e.g., freezing, condensation).<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-align-center has-text-color has-background has-link-color has-large-font-size wp-elements-267cd7bf0634b764eb55166171eb7aca\" style=\"color:#000060;background-color:#dfc816\"><strong>Heating Curve of Water<\/strong>:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"965\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-46-1024x965.png\" alt=\"\" class=\"wp-image-16021\" style=\"width:354px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-46-1024x965.png 1024w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-46-300x283.png 300w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-46-768x724.png 768w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-46-1536x1447.png 1536w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-46-2048x1930.png 2048w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-46-1568x1478.png 1568w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>A graph showing temperature changes as heat is added:\n<ul class=\"wp-block-list\">\n<li>Flat portions represent phase changes (e.g., melting and boiling).<\/li>\n\n\n\n<li>Sloped portions indicate temperature increase in a single state.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-align-center has-text-color has-background has-link-color has-large-font-size wp-elements-fac6377907d6ef0757e4d93b800c6502\" style=\"color:#000060;background-color:#dfc816\"><strong>Applications<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Refrigeration systems use condensation and evaporation cycles.<\/li>\n\n\n\n<li>Industrial processes like distillation involve state changes.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-large-font-size\" style=\"color:#d90000\">Let&#8217;s practice!<\/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\/95193\/662\/963\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-3.png\" alt=\"\" class=\"wp-image-6287\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-3.png 500w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-3-300x300.png 300w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-3-150x150.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\/75851\/136\/260\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-4.png\" alt=\"\" class=\"wp-image-6288\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-4.png 500w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-4-300x300.png 300w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-4-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Matter Changes Its State Key notes : Definition of Matter States: Interconversion of States: Processes of State Changes: Role of Temperature: Latent Heat: Effect of Pressure: Examples in Daily Life: Energy and State Changes: Heating Curve of Water: Applications: Let&#8217;s practice!<\/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-3627","page","type-page","status-publish","hentry","entry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3627","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/comments?post=3627"}],"version-history":[{"count":25,"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3627\/revisions"}],"predecessor-version":[{"id":17194,"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3627\/revisions\/17194"}],"wp:attachment":[{"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/media?parent=3627"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}