# 查看完整版本 : HEAT

dustbus 2013-8-5 09:27 PM

## HEAT

↗亢龍無悔↙ 2013-8-5 10:40 PM

Thermodynamics 都已經 cut 左，成課 gas 咪都係得返一千零一條式姐
Take the point (4,6) (8,4) (12,2) and apply ideal gas law
You will get the answer C

dustbus 2013-8-5 11:04 PM

but why PV graph is a straight line

↗亢龍無悔↙ 2013-8-5 11:10 PM

Coincident only~
Because the temperature varies "perfectly" to make the graph a straight line

dustbus 2013-8-5 11:12 PM

↗亢龍無悔↙ 2013-8-5 11:21 PM

No, the 反比 curve you mention is PV = nRT = constant
I.e. T is constant, in this question, it is obvious that T is not constant

dustbus 2013-8-5 11:31 PM

:smile_27: I have built up some misconceptions
thx

Zzlaz 2013-8-7 04:12 PM

But it is an ideal gss...follows ideal gas law lor..

[url=http://www.discuss.com.hk/android][img=100,23]http://i.discuss.com.hk/d/images/r10/androidD.jpg[/img][/url]

dustbus 2013-8-7 08:29 PM

[quote]原帖由 [i]Zzlaz[/i] 於 2013-8-7 04:12 PM 發表 [url=http://www.discuss.com.hk/redirect.php?goto=findpost&pid=368855259&ptid=22271883][img]http://www.discuss.com.hk/images/common/back.gif[/img][/url]

But it is an ideal gss...follows ideal gas law lor..

[img]http://i.discuss.com.hk/d/images/r10/androidD.jpg[/img] [/quote]