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桑树之泪

金虫 (著名写手)

[求助] 相图

压力为10^6Pa的2m3范德华气体进行绝热自由膨胀,直至体系压力5*10^5Pa时为止,在此过程中该气体做功()
A2*10^6    B10^6   C10^5   D 0



标出各交点的相数和自由度数
相图
_P8NQ`W54VX7{7KXU9P~157.jpg


相图-1
G5Z`OLJ8KJ56[1`}[SC]8LB.jpg
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zqxcyj

木虫 (著名写手)

D
a--TL固液两相平衡 自由度=0
b--纯固体TL,F=1
c--纯固体稳定化合物TL2Hg5,F=1
d--纯固体稳定化合物TL2Hg5的固液平衡,F=0
e---纯固体稳定化合物TL2Hg5, F=1
f--纯固体Hg,f=1
g--纯Hg固相与液相平衡,f=0
E1--液相+纯固相Hg+稳定化合物固相TL2HG5,f=0
E1--液相+纯固相TL+稳定化合物固相TL2HG5,f=0
所有自由度都是F=C-P+1求出的条件自由度
相图-2
w107h2771367_1388329870_773.jpg

2楼2013-12-29 23:55:05
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