作者ohmygod0715 (Thomas)
看板ChemEng
標題[問題] 熱力學一題觀念題
時間Wed Mar 5 15:44:02 2014
http://ppt.cc/SxuE
1.which of the following gives rise to temperature?
(1)change of internal energy with respect to voiume at constant entropy.
(2)change of Helmholtz free energy with respect to entropy at constant P(壓力)
(3)change of Gibbs free energy with respect to entropy at constant pressure.
(4)change of enthalpy with respect to entropy at constant pressure.
(我沒答案)
dU=TdS-PdV
dA=-SdT-PdV
dG=-SdT+VdP
dH=TdS+VdP
(1)定熵，dU=-PdV 溫度上升 體積不會變嗎@@?
(2)定容，dA=-SdT 溫度上升 A的也會改變吧@@?
(3)定壓，dG=-SdT 溫度上升 G也會改變吧
(4)定壓，dH=TdS 溫度上升 H也會改變吧= 口=
是用以上式子來判斷的嗎?
好像每一題都有關係阿@_@
求解<(_ _)>
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◆ From: 112.104.102.252
※ 編輯: ohmygod0715 來自: 112.104.102.252 (03/05 17:53)
1F：推 lucifer19:其實我不是很確定這題的題意說 140.120.135.23 03/05 18:14
2F：→ lucifer19:英文太爛看不是很懂 140.120.135.23 03/05 18:14
3F：推 lucifer19:我看起來好像也都有關 140.120.135.23 03/05 18:16
4F：推 kobe4153837:4 42.79.64.49 03/08 00:39
5F：→ redfaction:下列何者會導致溫度的上升。是這意思吧140.114.123.199 08/01 16:21
6F：→ redfaction:? 我想答案是4140.114.123.199 08/01 16:21
7F：推 sgps50103: 原po英文要加強，應該是4 36.231.244.92 12/10 10:28