{"id":19713,"date":"2017-01-23T22:26:05","date_gmt":"2017-01-23T22:26:05","guid":{"rendered":"http:\/\/www.oracletutoring.ca\/blog\/?p=19713"},"modified":"2017-01-23T22:26:05","modified_gmt":"2017-01-23T22:26:05","slug":"chemistry-thermodynamics-temperature-increase-caused-by-compression-continued","status":"publish","type":"post","link":"https:\/\/www.oracletutoring.ca\/blog\/chemistry-thermodynamics-temperature-increase-caused-by-compression-continued\/","title":{"rendered":"Chemistry, thermodynamics: temperature increase caused by compression, continued"},"content":{"rendered":"

The tutor looks more specifically into the effect of compression on gas temperature.<\/h1>\n

In my January 20 post<\/a> I began about thermodynamics and the effect of compressing a gas. Today, I’ll give more specific coverage.<\/p>\n

The temperature rise a gas experiences (without change in entropy) due to pressure is given by the formula<\/p>\n

T2<\/sub> = T1<\/sub>(P2<\/sub>\/P1<\/sub>)[1-1\/γ]<\/sup><\/p>\n

where<\/p>\n

T1<\/sub>,T2<\/sub> are initial and final temperatures<\/p>\n

P1<\/sub>,P2<\/sub> are initial and final temperatures<\/p>\n

γ = Cp<\/sub>\/Cv<\/sub>, where<\/p>\n

Cp<\/sub> = gas specific heat at constant pressure<\/p>\n

Cv<\/sub> = gas specific heat at constant volume<\/p>\n

Typcially, γ might be around 1.4. Therefore, imagining a diesel engine with 17:1 compression, at starting temperature 298K (25°C) the resulting temp, T2<\/sub>, might be<\/p>\n

T2<\/sub>=298(17\/1)[1-1\/1.4]<\/sup><\/p>\n

T2<\/sub>=670K<\/p>\n

Source:<\/p>\n

www.forums.tdiclub.com<\/a>
\nwww.grc.nasa.gov<\/a>
\nwww.ohio.edu<\/a>
\nwww.thefreedictionary.com<\/a><\/p>\n

Jack of Oracle Tutoring by Jack and Diane,<\/a> Campbell River, BC.<\/p>\n","protected":false},"excerpt":{"rendered":"

The tutor looks more specifically into the effect of compression on gas temperature. In my January 20 post I began about thermodynamics and the effect of compressing a gas. Today, I’ll give more specific coverage. The temperature rise a gas …<\/p>\n

Chemistry, thermodynamics: temperature increase caused by compression, continued<\/span> Read More »<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11,2094,7,2106],"tags":[2108],"class_list":["post-19713","post","type-post","status-publish","format-standard","hentry","category-chemistry","category-physical-chemistry","category-physics","category-thermodynamics","tag-isentropic-gas-expansion-temperature-change"],"_links":{"self":[{"href":"https:\/\/www.oracletutoring.ca\/blog\/wp-json\/wp\/v2\/posts\/19713","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.oracletutoring.ca\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.oracletutoring.ca\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.oracletutoring.ca\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.oracletutoring.ca\/blog\/wp-json\/wp\/v2\/comments?post=19713"}],"version-history":[{"count":36,"href":"https:\/\/www.oracletutoring.ca\/blog\/wp-json\/wp\/v2\/posts\/19713\/revisions"}],"predecessor-version":[{"id":19751,"href":"https:\/\/www.oracletutoring.ca\/blog\/wp-json\/wp\/v2\/posts\/19713\/revisions\/19751"}],"wp:attachment":[{"href":"https:\/\/www.oracletutoring.ca\/blog\/wp-json\/wp\/v2\/media?parent=19713"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.oracletutoring.ca\/blog\/wp-json\/wp\/v2\/categories?post=19713"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.oracletutoring.ca\/blog\/wp-json\/wp\/v2\/tags?post=19713"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}