{"id":6,"date":"2024-04-04T07:50:43","date_gmt":"2024-04-04T04:50:43","guid":{"rendered":"https:\/\/sisu.ut.ee\/keemiaabc\/13-reaktsiooni-tunnused-ja-esilekutsumine\/"},"modified":"2024-04-04T15:25:07","modified_gmt":"2024-04-04T12:25:07","slug":"13-reaktsiooni-tunnused-ja-esilekutsumine","status":"publish","type":"page","link":"https:\/\/sisu.ut.ee\/keemiaabc\/13-reaktsiooni-tunnused-ja-esilekutsumine\/","title":{"rendered":"1.3. Reaktsiooni tunnused ja esilekutsumine"},"content":{"rendered":"<p>\r\n\t<span style=\"line-height:150%\"><span lang=\"ET\"><span style=\"line-height:150%\"><span style=\",serif\">Keemia on teadus, mis uurib ainetega toimuvad muundumisi. Kuidas saame aga olla kindlad, et meil toimub keemiline reaktsioon?<\/span><\/span><\/span><\/span>\r\n<\/p>\r\n\r\n<p>\r\n\t<\/p><div class=\"ratio ratio-16x9 mb-3\"><div class=\"video-placeholder-wrapper video-placeholder-wrapper--16x9\">\n\t\t\t    <div class=\"video-placeholder d-flex justify-content-center align-items-center\">\n\t\t\t        <div class=\"overlay text-white p-2 w-100 text-center d-block justify-content-center align-items-center\">\n\t\t\t            <div>Kolmandate osapoolte sisu n\u00e4gemiseks palun n\u00f5ustu k\u00fcpsistega.<\/div>\n\t\t\t            <button class=\"btn btn-secondary btn-sm mt-1 consent-change\">Muuda n\u00f5usolekut<\/button>\n\t\t\t        <\/div>\n\t\t\t    <\/div>\n\t\t\t<\/div>\n<\/div>\r\n\r\n\r\n<h6>\r\n\t<span style=\"line-height:150%\"><span lang=\"ET\"><span style=\"line-height:150%\"><span style=\",serif\">Allikas:\u00a0<\/span><\/span><\/span><\/span><a data-url=\"https:\/\/youtu.be\/vkxhQUkqHq0\" href=\"https:\/\/youtu.be\/vkxhQUkqHq0\" target=\"_blank\" title=\"\" rel=\"noopener\">https:\/\/youtu.be\/vkxhQUkqHq0<\/a>\r\n<\/h6>\r\n\r\n<p>\r\n\t<span style=\"line-height:150%\"><span lang=\"ET\"><span style=\"line-height:150%\"><span style=\",serif\">N\u00e4htusi saab liigitada f\u00fc\u00fcsikalisteks ja keemilisteks. <\/span><\/span><\/span><\/span>\r\n<\/p>\r\n\r\n<p>\r\n\tF\u00fc\u00fcsikaline n\u00e4htus is<span style=\"line-height:150%\"><span lang=\"ET\"><span style=\"background:white\"><span style=\"line-height:150%\"><span style=\",serif\">eloomustab ainega toimuvaid muutusi, mille korral aine ise j\u00e4\u00e4b samaks. <\/span><\/span><\/span><\/span><span lang=\"ET\"><span style=\"line-height:150%\"><span style=\",serif\">K\u00f5ige lihtsama n\u00e4itena vaatleme vett. Me teame, et vesi esineb\u00a0kolmes erinevas olekus: tahke, vedel ja gaasiline. Kui me sulatame j\u00e4\u00e4t\u00fckki, siis muutub k\u00fcll vee olek, kuid vesi ise j\u00e4\u00e4b oma koostiselt ikkagi samaks, j\u00e4relikult on selle protsessi juures tegemist f\u00fc\u00fcsikalise n\u00e4htusega. Samamoodi on f\u00fc\u00fcsikaline n\u00e4htus m\u00f5ne tahke aine peenestamine v\u00f5i metalli sulatamine.<\/span><\/span><\/span><\/span>\r\n<\/p>\r\n\r\n<p>\r\n\tKeemiline n\u00e4htus kir<span style=\"line-height:150%\"><span lang=\"ET\"><span style=\"line-height:150%\"><span style=\",serif\"><span style=\"color:#434343\">jeldab ainete muundumist uuteks aineteks<\/span><\/span><\/span><\/span><span lang=\"ET\"><span style=\"line-height:150%\"><span style=\",serif\">. Seda protsessi nimetatakse ka keemiliseks reaktsiooniks. \u00dcks lihtsamaid keemilisi reaktsioone on p\u00f5lemine, kus n\u00e4iteks puit reageerib \u00f5hus oleva hapnikuga ja tekivad uued ained:\u00a0s\u00fcsihappegaas ja vesi. Enamasti esinevad keemilised ja f\u00fc\u00fcsikalised n\u00e4htused koos, n\u00e4iteks k\u00fc\u00fcnla p\u00f5lemise korral toimub nii parafiini sulamine, mis on f\u00fc\u00fcsikaline n\u00e4htus, kui ka p\u00f5lemisprotsess, mis on keemiline n\u00e4htus.<\/span><\/span><\/span><\/span>\r\n<\/p>\r\n\r\n<p>\r\n\t<\/p><div class=\"accordion mb-3\">\n        <div class=\"accordion-item accordion-item--white\">\n        <h2 class=\"accordion-header\" id=\"accordion-69dc6fcfea3f1-heading\">\n            <button class=\"accordion-button collapsed\" type=\"button\" data-bs-toggle=\"collapse\" data-bs-target=\"#accordion-69dc6fcfea3f1-collapse\" aria-expanded=\"true\" aria-controls=\"accordion-69dc6fcfea3f1-collapse\">\u00dclesanne 1<\/button>\n        <\/h2>\n        <div id=\"accordion-69dc6fcfea3f1-collapse\" class=\"accordion-collapse collapse\" aria-labelledby=\"accordion-69dc6fcfea3f1-heading\">\n            <div class=\"accordion-body\">Otsusta, kas tegemist on f\u00fc\u00fcsikalise v\u00f5i keemilise n\u00e4htusega.\r\n\r\n\r\n<p>\r\n\t<\/p><div class=\"h5p-iframe-wrapper\"><div class=\"video-placeholder-wrapper video-placeholder-wrapper--fixed\" style=\"height: 366px;\">\n\t\t\t    <div class=\"video-placeholder d-flex justify-content-center align-items-center\">\n\t\t\t        <div class=\"overlay text-white p-2 w-100 text-center d-block justify-content-center align-items-center\">\n\t\t\t            <div>Kolmandate osapoolte sisu n\u00e4gemiseks palun n\u00f5ustu k\u00fcpsistega.<\/div>\n\t\t\t            <button class=\"btn btn-secondary btn-sm mt-1 consent-change\">Muuda n\u00f5usolekut<\/button>\n\t\t\t        <\/div>\n\t\t\t    <\/div>\n\t\t\t<\/div>\n<\/div><\/div>\n        <\/div>\n        <\/div>\n    <\/div>\r\n\r\n\r\n<p>\r\n\t<span style=\"line-height:150%\"><span lang=\"ET\"><span style=\"line-height:150%\"><span style=\",serif\">Selleks, et saaksime olla kindlad, et tegemist on keemilise reaktsiooniga, peab olema esindatud v\u00e4hemalt \u00fcks j\u00e4rgnevatest muutustest:<\/span><\/span><\/span><\/span>\r\n<\/p>\r\n\r\n<ol>\r\n\t<li>\r\n\t\t<span style=\"line-height:150%\"><span lang=\"ET\"><span style=\"line-height:150%\"><span style=\",serif\">sademe teke v\u00f5i kadumine,<\/span><\/span><\/span><\/span>\r\n\t<\/li>\r\n\t<li>\r\n\t\t<span style=\"line-height:150%\"><span lang=\"ET\"><span style=\"line-height:150%\"><span style=\",serif\">gaasi eraldumine,\u00a0<\/span><\/span><\/span><\/span>\r\n\t<\/li>\r\n\t<li>\r\n\t\t<span style=\"line-height:150%\"><span lang=\"ET\"><span style=\"line-height:150%\"><span style=\",serif\">l\u00f5hna teke v\u00f5i muutus,<\/span><\/span><\/span><\/span>\r\n\t<\/li>\r\n\t<li>\r\n\t\t<span style=\"line-height:150%\"><span lang=\"ET\"><span style=\"line-height:150%\"><span style=\",serif\">v\u00e4rvuse muutus,<\/span><\/span><\/span><\/span>\r\n\t<\/li>\r\n\t<li>\r\n\t\t<span style=\"line-height:150%\"><span lang=\"ET\"><span style=\"line-height:150%\"><span style=\",serif\">soojuse ja\/v\u00f5i valguse eraldumine.<\/span><\/span><\/span><\/span>\r\n\t<\/li>\r\n<\/ol>\r\n\r\n<p>\r\n\t<\/p><div class=\"accordion mb-3\">\n        <div class=\"accordion-item accordion-item--white\">\n        <h2 class=\"accordion-header\" id=\"accordion-69dc6fcfea405-heading\">\n            <button class=\"accordion-button collapsed\" type=\"button\" data-bs-toggle=\"collapse\" data-bs-target=\"#accordion-69dc6fcfea405-collapse\" aria-expanded=\"true\" aria-controls=\"accordion-69dc6fcfea405-collapse\">\u00dclesanne 2<\/button>\n        <\/h2>\n        <div id=\"accordion-69dc6fcfea405-collapse\" class=\"accordion-collapse collapse\" aria-labelledby=\"accordion-69dc6fcfea405-heading\">\n            <div class=\"accordion-body\">Milline reaktsiooni tunnus esineb igap\u00e4evaelu protsessis?\r\n\r\n\r\n<p>\r\n\t<\/p><div class=\"h5p-iframe-wrapper\"><div class=\"video-placeholder-wrapper video-placeholder-wrapper--fixed\" style=\"height: 366px;\">\n\t\t\t    <div class=\"video-placeholder d-flex justify-content-center align-items-center\">\n\t\t\t        <div class=\"overlay text-white p-2 w-100 text-center d-block justify-content-center align-items-center\">\n\t\t\t            <div>Kolmandate osapoolte sisu n\u00e4gemiseks palun n\u00f5ustu k\u00fcpsistega.<\/div>\n\t\t\t            <button class=\"btn btn-secondary btn-sm mt-1 consent-change\">Muuda n\u00f5usolekut<\/button>\n\t\t\t        <\/div>\n\t\t\t    <\/div>\n\t\t\t<\/div>\n<\/div><\/div>\n        <\/div>\n        <\/div>\n    <\/div>\r\n\r\n\r\n<p>\r\n\tSelleks, et keemiline reaktsioon saaks \u00fcldse toimuda, peavad aineosakesed omavahel kokku puutuma. On reaktsioone, mille toimumiseks piisabki ainult ainete omavahelisest kokkupuutumisest, kuid enamik reaktsioone toimub alles siis, kui on t\u00e4idetud m\u00f5ni reaktsiooni esilekutsuvatest tingimustest:\r\n<\/p>\r\n\r\n<ul>\r\n\t<li>\r\n\t\tkuumutamine,\r\n\t<\/li>\r\n\t<li>\r\n\t\ts\u00fc\u00fctamine,\r\n\t<\/li>\r\n\t<li>\r\n\t\telektrivoolu l\u00e4bijuhtimine,\r\n\t<\/li>\r\n\t<li>\r\n\t\tvalgustamine.\r\n\t<\/li>\r\n<\/ul>\r\n\r\n<p>\r\n\t<\/p><div class=\"accordion mb-3\">\n        <div class=\"accordion-item accordion-item--white\">\n        <h2 class=\"accordion-header\" id=\"accordion-69dc6fcfea407-heading\">\n            <button class=\"accordion-button collapsed\" type=\"button\" data-bs-toggle=\"collapse\" data-bs-target=\"#accordion-69dc6fcfea407-collapse\" aria-expanded=\"true\" aria-controls=\"accordion-69dc6fcfea407-collapse\">\u00dclesanne 3<\/button>\n        <\/h2>\n        <div id=\"accordion-69dc6fcfea407-collapse\" class=\"accordion-collapse collapse\" aria-labelledby=\"accordion-69dc6fcfea407-heading\">\n            <div class=\"accordion-body\">\r\n\r\n\r\n<p>\r\n\t<\/p><div class=\"h5p-iframe-wrapper\"><div class=\"video-placeholder-wrapper video-placeholder-wrapper--fixed\" style=\"height: 366px;\">\n\t\t\t    <div class=\"video-placeholder d-flex justify-content-center align-items-center\">\n\t\t\t        <div class=\"overlay text-white p-2 w-100 text-center d-block justify-content-center align-items-center\">\n\t\t\t            <div>Kolmandate osapoolte sisu n\u00e4gemiseks palun n\u00f5ustu k\u00fcpsistega.<\/div>\n\t\t\t            <button class=\"btn btn-secondary btn-sm mt-1 consent-change\">Muuda n\u00f5usolekut<\/button>\n\t\t\t        <\/div>\n\t\t\t    <\/div>\n\t\t\t<\/div>\n<\/div><\/div>\n        <\/div>\n        <\/div>\n    <\/div>\r\n\r\n","protected":false},"excerpt":{"rendered":"<p>Keemia on teadus, mis uurib ainetega toimuvad muundumisi. Kuidas saame aga olla kindlad, et meil toimub keemiline reaktsioon? Kolmandate osapoolte sisu n\u00e4gemiseks palun n\u00f5ustu k\u00fcpsistega. Muuda n\u00f5usolekut Allikas:\u00a0https:\/\/youtu.be\/vkxhQUkqHq0 N\u00e4htusi saab liigitada f\u00fc\u00fcsikalisteks ja keemilisteks. F\u00fc\u00fcsikaline n\u00e4htus iseloomustab ainega toimuvaid muutusi, &#8230;<\/p>\n","protected":false},"author":276,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-6","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/sisu.ut.ee\/keemiaabc\/wp-json\/wp\/v2\/pages\/6","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sisu.ut.ee\/keemiaabc\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sisu.ut.ee\/keemiaabc\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sisu.ut.ee\/keemiaabc\/wp-json\/wp\/v2\/users\/276"}],"replies":[{"embeddable":true,"href":"https:\/\/sisu.ut.ee\/keemiaabc\/wp-json\/wp\/v2\/comments?post=6"}],"version-history":[{"count":5,"href":"https:\/\/sisu.ut.ee\/keemiaabc\/wp-json\/wp\/v2\/pages\/6\/revisions"}],"predecessor-version":[{"id":407,"href":"https:\/\/sisu.ut.ee\/keemiaabc\/wp-json\/wp\/v2\/pages\/6\/revisions\/407"}],"wp:attachment":[{"href":"https:\/\/sisu.ut.ee\/keemiaabc\/wp-json\/wp\/v2\/media?parent=6"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}