作者karena817 (Karena)
看板Chemistry
标题[物化]平衡常数
时间Sat Feb 16 18:14:48 2008
写课本习题遇到不知道该怎麽下手,求平衡常数的问题
麻烦大家指点我迷津
The dissociation vapor pressure of NH4CL at 427度C is 608 kpa
but at 459度C it has risen to 1115 kpa.
求
(a)equlilbrium constant
(b)standard reaction Gibbs energy
(c)standard enthalpy
(d)standard entropy of dissociation
all at 427度C.
Assume that the vapor behaves as a perfect gas and that △H and △S
are independent of temperature in the range given.
答案:(a) 9.24
(b) -12.9 kJ/mol
(c) 161 kJ/mol
(d) 248 J/K.mol
谢谢
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※ 编辑: karena817 来自: 218.172.97.120 (02/16 18:17)
1F：推 netpp:我觉得应该还要有459℃时的平衡常数....这样才算得出来 02/17 23:05