{"id":285798,"date":"2016-09-28T02:00:00","date_gmt":"2016-09-27T23:00:00","guid":{"rendered":"http:\/\/www.fyysika.ee\/?guid=9f1ba20cd1e4d3a5956496e1405a02f5"},"modified":"2016-09-28T02:00:00","modified_gmt":"2016-09-27T23:00:00","slug":"revisiting-the-fog-bottle-experiment","status":"publish","type":"post","link":"https:\/\/www.fyysika.ee\/?p=285798","title":{"rendered":"Revisiting the fog bottle experiment"},"content":{"rendered":"<p>In this article we propose an irreversible adiabatic expansion model, modified from previous work,<br \/>\nto explain the fog bottle experiment. Our model divides the phenomenon into five thermodynamic<br \/>\nstates, and we include in our calculation irreversible work pushing a stopper out of the bottle and<br \/>\nheat gain from the condensation of saturated vapour. In the experiment, thermodynamic variables<br \/>\nincluding pressure and temperature as functions of time were measured. The work done in pushing the<br \/>\nstopper out was measured and the condensation heat was determined using the Clausius\u2013Clapeyron<br \/>\nequation to determine saturated vapour pressure. As a result, fog formation was explained through a<br \/>\nphase diagram of water showing the saturated vapour pressure during irreversible adiabatic<br \/>\nexpansion. Also, state variables ( P , V and T ) and the entropy change of the real process were<br \/>\ncompared with the reversible and irreversible adiabatic expansion and our modified process. Using a<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In this article we propose an irreversible adiabatic expansion model, modified from previous work,<br \/>\nto explain the fog bottle experiment. Our model divides the phenomenon into five thermodynamic<br \/>\nstates, and we include in our calculation irreversible w&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[178],"tags":[],"class_list":{"0":"post-285798","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-rss-fuusikaharidus","7":"entry"},"_links":{"self":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/285798","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=285798"}],"version-history":[{"count":0,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/285798\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=285798"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=285798"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=285798"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}