作者EstLan (呆蓝)
看板Chemistry
标题Re: [问题]热力学的一些概念问题!!
时间Mon Jan 29 09:01:13 2007
可能是我po的文意不清楚!! 重po一次
请说明 Q, W, ΔU, ΔH 的值是大於,等於获小於0
(1) a ideal gas expands isothermally against external pressure of
1 atm
(2) an liguid at its boiling point is converted reversibly into its
vapor, at constant temperature and 1 atm
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1F：推 ju11:1.ΔU=0ΔH=0 2.ΔU>0 ΔH>0 Q>0 W<0 是这样子吗? 01/29 11:52