作者asdghjk789 (葡萄果醬)
看板ChemEng
標題[問題] 化工熱力學相關問題
時間Tue Jan 10 20:53:43 2012
1.
(a) Calculate the critical parameters(P,v,T at critical point)for a fluid that
obeys the van der Waals equation. (P+a/v^2)(v-b)=RT,where a and b are
positive constants.
(b) Show that its critical compressibility factor, Z = 3/8.
2.
(a) What would be the critical parameters for a fluid cbeying the ideal-gas
equation of state. Pv = RT ?
(b) What would be the critical parameters for a fluid obeying P(v-b) = RT ?
以上兩題有請熱力神人幫忙解答了 <(_ _)>
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 219.85.207.188
1F：推 bluebert:1.利用P.V於臨界點呈雙曲線利用雙曲線特 114.34.243.225 01/10 21:36
2F：→ bluebert:性 P對V微分於T為恆溫下 1次即2次 皆為0 114.34.243.225 01/10 21:38
3F：→ bluebert:解聯立 即可求得Pc(P於臨界點下) 與Vc 114.34.243.225 01/10 21:40
4F：→ bluebert:帶回a.b即為所求 2.(b) Z=(Pc*Vc/R*Tc) 114.34.243.225 01/10 21:42
5F：→ bluebert:即可得到於臨界點的壓縮係數 114.34.243.225 01/10 21:42
6F：→ bluebert:第一次回答問題 希望對你有幫助 114.34.243.225 01/10 21:50
7F：→ mp823:這不是基本題嗎XD 111.241.63.252 01/12 21:53