{"id":238990,"date":"2016-07-06T02:00:00","date_gmt":"2016-07-05T23:00:00","guid":{"rendered":"http:\/\/www.fyysika.ee\/?guid=48360396cec34a23d92c774b5d0e791b"},"modified":"2016-07-06T02:00:00","modified_gmt":"2016-07-05T23:00:00","slug":"producing-liquid-oxygen-in-the-classroom","status":"publish","type":"post","link":"https:\/\/www.fyysika.ee\/?p=238990","title":{"rendered":"Producing liquid oxygen in the classroom"},"content":{"rendered":"<p>A number of organisations have provided instructions on how to produce small quantities of liquid<br \/>\noxygen in the classroom using liquid nitrogen and a copper condensation coil (Lister 1995 Classic<br \/>\nChemistry Demonstrations (London: Royal Society of Chemistry) pp 61\u20132, French and Hibbert 2010 Phys.<br \/>\nEduc . 45 [http:\/\/dx.doi.org\/10.1088\/0031-9120\/45\/3\/F01] 221\u20132<br \/>\n[http:\/\/dx.doi.org\/10.1088\/0031-9120\/45\/3\/F01] ). The method presented below describes a process<br \/>\nwhich is believed to be safer as it contains the oxygen during production and produces a<br \/>\ncontrollable amount of the liquid. The method also has the advantage that it can be conducted using<br \/>\ncheap and easily available materials.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A number of organisations have provided instructions on how to produce small quantities of liquid<br \/>\noxygen in the classroom using liquid nitrogen and a copper condensation coil (Lister 1995 Classic<br \/>\nChemistry Demonstrations (London: Royal Society of Che&#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-238990","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\/238990","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=238990"}],"version-history":[{"count":0,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/238990\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=238990"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=238990"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=238990"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}