(a) Hg (l) ---> Hg(g)
(b) 3O2(g) ---> 2O3(g)
(c) CuSO4 x 5H2O(s) ---> CuSO4(s) + 5H2O
(d) H2(g) + F2(g) ---> 2HF(g)
At constant pressure, in which of the reactions is work done by the system on the surroundings? By the surroundings on the system? In which of them is no work done?
This question was asked on Feb 01, 2011.
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