{"id":3199,"date":"2017-11-09T14:06:01","date_gmt":"2017-11-09T13:06:01","guid":{"rendered":"http:\/\/agora.xtec.cat\/ceiprellinars\/?p=3199"},"modified":"2017-12-06T21:30:21","modified_gmt":"2017-12-06T20:30:21","slug":"els-canvis-destat-de-la-mantega","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/ceiprellinars\/grans\/els-canvis-destat-de-la-mantega\/","title":{"rendered":"Els canvis d&#8217;estat de la mantega"},"content":{"rendered":"<p>El divendres passat v\u00e0rem fer un experiment amb mantega.<\/p>\n<p>Vol\u00edem veure a partir de comprovacions si era possible que li canvi\u00e9ssim el seu estat.<\/p>\n<p>V\u00e0rem passar la mantega de s\u00f2lid a l\u00edquid escalfant-la al microones (fusi\u00f3). Despr\u00e9s aquest l\u00edquid el v\u00e0rem posar al congelador i v\u00e0rem veure que podia passar de l\u00edquid a s\u00f2lid (solidificaci\u00f3).<\/p>\n<p>Despr\u00e9s v\u00e0rem intentar passar de l\u00edquid a gas\u00f3s. Es va originar un gran debat amb idees diferents, uns deien que el vapor que sortia era vapor de mantega i altres deien que no podia ser. Per tant, v\u00e0rem decidir buscar quin s\u00f3n els components de la mantega.<\/p>\n<p>Composici\u00f3 de la mantega:<\/p>\n<ul>\n<li>80% de greix<\/li>\n<li>16% d&#8217;aigua<\/li>\n<li>4% altres components de la llet<\/li>\n<\/ul>\n<p>Alguns continuaven dient que era vapor de mantega mentre que la resta tenia molt clar que era vapor d&#8217;aigua.<\/p>\n<p>El Mar\u00e7al va dir que calia continuar escalfant la mantega per evaporar l&#8217;aigua. Despr\u00e9s sortiria vapor de mantega.<\/p>\n<p>A mesura que s&#8217;anava escalfant, sortia cada vegada menys vapor. Finalment, no va sortir res de res.<\/p>\n<p>Les conclusions van ser que no pod\u00edem passar de l\u00edquid a gas\u00f3s, perqu\u00e8 el vapor que sortia era el<\/p>\n<p>16 % d\u2019aigua que contenia la mantega. Aix\u00ed doncs no es pot vaporitzar la mantega ni tampoc condensar.<\/p>\n<p><a href=\"http:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2017\/11\/mantega-002.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-3204\" src=\"http:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2017\/11\/mantega-002.jpg\" alt=\"\" width=\"448\" height=\"336\" srcset=\"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2017\/11\/mantega-002.jpg 448w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2017\/11\/mantega-002-300x225.jpg 300w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2017\/11\/mantega-002-200x150.jpg 200w\" sizes=\"auto, (max-width: 448px) 100vw, 448px\" \/><\/a> <a href=\"http:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2017\/11\/mantega-011.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-3205\" src=\"http:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2017\/11\/mantega-011.jpg\" alt=\"\" width=\"448\" height=\"336\" srcset=\"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2017\/11\/mantega-011.jpg 448w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2017\/11\/mantega-011-300x225.jpg 300w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2017\/11\/mantega-011-200x150.jpg 200w\" sizes=\"auto, (max-width: 448px) 100vw, 448px\" \/><\/a><\/p>\n<p><a href=\"http:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2017\/11\/mantega-015.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3203\" src=\"http:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2017\/11\/mantega-015.jpg\" alt=\"\" width=\"448\" height=\"336\" srcset=\"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2017\/11\/mantega-015.jpg 448w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2017\/11\/mantega-015-300x225.jpg 300w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2017\/11\/mantega-015-200x150.jpg 200w\" sizes=\"auto, (max-width: 448px) 100vw, 448px\" \/><\/a><\/p>\n<p><a href=\"http:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2017\/11\/mantega-007.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-3207\" src=\"http:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2017\/11\/mantega-007.jpg\" alt=\"\" width=\"448\" height=\"336\" srcset=\"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2017\/11\/mantega-007.jpg 448w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2017\/11\/mantega-007-300x225.jpg 300w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2017\/11\/mantega-007-200x150.jpg 200w\" sizes=\"auto, (max-width: 448px) 100vw, 448px\" \/><\/a> <a href=\"http:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2017\/11\/mantega-008.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-3208\" src=\"http:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2017\/11\/mantega-008.jpg\" alt=\"\" width=\"448\" height=\"336\" srcset=\"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2017\/11\/mantega-008.jpg 448w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2017\/11\/mantega-008-300x225.jpg 300w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2017\/11\/mantega-008-200x150.jpg 200w\" sizes=\"auto, (max-width: 448px) 100vw, 448px\" \/><\/a><a href=\"http:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2017\/11\/mantega-018.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3206\" src=\"http:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2017\/11\/mantega-018.jpg\" alt=\"\" width=\"448\" height=\"336\" srcset=\"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2017\/11\/mantega-018.jpg 448w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2017\/11\/mantega-018-300x225.jpg 300w, https:\/\/agora.xtec.cat\/ceiprellinars\/wp-content\/uploads\/usu566\/2017\/11\/mantega-018-200x150.jpg 200w\" sizes=\"auto, (max-width: 448px) 100vw, 448px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>El divendres passat v\u00e0rem fer un experiment amb mantega. Vol\u00edem veure a partir de comprovacions si era possible que li canvi\u00e9ssim el seu estat. V\u00e0rem passar la mantega de s\u00f2lid a l\u00edquid escalfant-la al microones (fusi\u00f3). Despr\u00e9s aquest l\u00edquid el v\u00e0rem posar al congelador i v\u00e0rem veure que podia passar de l\u00edquid a s\u00f2lid (solidificaci\u00f3). [&hellip;]<\/p>\n","protected":false},"author":16,"featured_media":3203,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[9],"tags":[],"class_list":["post-3199","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-grans"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-json\/wp\/v2\/posts\/3199","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-json\/wp\/v2\/users\/16"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-json\/wp\/v2\/comments?post=3199"}],"version-history":[{"count":1,"href":"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-json\/wp\/v2\/posts\/3199\/revisions"}],"predecessor-version":[{"id":3209,"href":"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-json\/wp\/v2\/posts\/3199\/revisions\/3209"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-json\/wp\/v2\/media\/3203"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-json\/wp\/v2\/media?parent=3199"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-json\/wp\/v2\/categories?post=3199"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/ceiprellinars\/wp-json\/wp\/v2\/tags?post=3199"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}