{"id":3629,"date":"2023-01-09T10:07:23","date_gmt":"2023-01-09T10:07:23","guid":{"rendered":"https:\/\/9thclass.deltapublications.in\/?page_id=3629"},"modified":"2025-07-26T07:11:47","modified_gmt":"2025-07-26T07:11:47","slug":"s-1-e-evaporation","status":"publish","type":"page","link":"https:\/\/9thclass.deltapublications.in\/index.php\/s-1-e-evaporation\/","title":{"rendered":"S-1.e Evaporation"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-text-align-center has-text-color has-link-color wp-elements-ecc7c5ef7c3abb1ba4eca299c4c8f7d7\" style=\"color:#00056d;text-transform:uppercase\"><strong>Evaporation<\/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 loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/MUk-g9tc0Zk?rel=0&#038;modestbranding=1&#038;showinfo=0\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div>\n<\/div>\n\n\n\n<p class=\"has-text-color has-link-color has-huge-font-size wp-elements-869a5c0b6b78055316c8d0186252dcbd\" 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-d61086126420644f3a743caf5423a6b0\" style=\"color:#000060;background-color:#dfc816\"><strong>Definition<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\">Evaporation is the process by which a liquid changes into a gas at a temperature below 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-494d6acd0136e15408f08de1878b1172\" style=\"color:#000060;background-color:#dfc816\"><strong>How It Happens<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\">Molecules at the surface of a liquid gain enough energy to overcome intermolecular forces and escape into the air as vapor.<\/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-2723d4013a27a0d97c41081a1c6747b8\" style=\"color:#000060;background-color:#dfc816\"><strong>Factors Affecting Evaporation<\/strong>:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"462\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-48.png\" alt=\"\" class=\"wp-image-16029\" style=\"width:476px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-48.png 1000w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-48-300x139.png 300w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-48-768x355.png 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Surface Area<\/strong>: Greater surface area increases evaporation rate as more molecules are exposed.<\/li>\n\n\n\n<li><strong>Temperature<\/strong>: Higher temperatures provide more energy for molecules to escape.<\/li>\n\n\n\n<li><strong>Humidity<\/strong>: Lower humidity levels lead to faster evaporation since the air can hold more water vapor.<\/li>\n\n\n\n<li><strong>Wind Speed<\/strong>: Increased wind removes water vapor from the surface, enhancing evaporation.<\/li>\n\n\n\n<li><strong>Nature of Liquid<\/strong>: Volatile liquids evaporate more quickly than non-volatile ones.<\/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-6036cdd8510bcd4c5c37a01d515a11ac\" style=\"color:#000060;background-color:#dfc816\"><strong>Cooling Effect<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Evaporation causes cooling because high-energy molecules leave the liquid, reducing the average kinetic energy of the remaining molecules.<\/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-d2a2ede12aacffc9234050d00707c768\" style=\"color:#000060;background-color:#dfc816\"><strong>Real-Life Examples<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Sweating helps cool the body as the sweat evaporates.<\/li>\n\n\n\n<li>Clothes dry faster on a sunny or windy day.<\/li>\n\n\n\n<li>Water bodies lose heat through evaporation.<\/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 the principle of evaporation for cooling.<\/li>\n\n\n\n<li>Evaporation is a key step in the water cycle, contributing to cloud formation.<\/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-41307b828ca2f3afd0ed19b5e429fc3b\" style=\"color:#000060;background-color:#dfc816\"><strong>Differences from Boiling<\/strong>:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"709\" height=\"448\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-49.png\" alt=\"\" class=\"wp-image-16031\" style=\"width:367px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-49.png 709w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-49-300x190.png 300w\" sizes=\"auto, (max-width: 709px) 100vw, 709px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Evaporation occurs at any temperature, while boiling happens at a specific boiling point.<\/li>\n\n\n\n<li>Evaporation occurs only at the surface, whereas boiling occurs throughout the liquid.<\/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-a0bb056f5b4df197dc813270064d5101\" style=\"color:#000060;background-color:#dfc816\"><strong>Role in Nature<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Maintains the Earth&#8217;s temperature balance by absorbing heat.<\/li>\n\n\n\n<li>Facilitates the movement of water from oceans and lakes to the atmosphere.<\/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-277c4bf55358ce4432c0343bd6437a83\" style=\"color:#000060;background-color:#dfc816\"><strong>Importance in Industry<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Used in processes like salt production (evaporation of seawater).<\/li>\n\n\n\n<li>Applied in drying techniques for food and pharmaceuticals.<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-group has-large-font-size\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"has-text-color has-large-font-size\" style=\"color:#d90000\">Let&#8217;s practice!<\/p>\n<\/div><\/div>\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\/95194\/156\/201\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-4.png\" alt=\"\" class=\"wp-image-6296\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-4.png 500w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-4-300x300.png 300w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-4-150x150.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\/75850\/580\/255\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-5.png\" alt=\"\" class=\"wp-image-6300\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-5.png 500w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-5-300x300.png 300w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-5-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Evaporation key notes : Definition: How It Happens: Factors Affecting Evaporation: Cooling Effect: Real-Life Examples: Applications: Differences from Boiling: Role in Nature: Importance in Industry: 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-3629","page","type-page","status-publish","hentry","entry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3629","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=3629"}],"version-history":[{"count":34,"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3629\/revisions"}],"predecessor-version":[{"id":17197,"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3629\/revisions\/17197"}],"wp:attachment":[{"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/media?parent=3629"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}