Chemistry miscellaneousHard
Question
For the process H2O(l) (1 bar, 373 K) → H2O(g) (1 bar, 373 K), the correct set of thermodynamic parameters is
Options
A.ᐃG = 0, ᐃS = + ve
B.ᐃG = 0, ᐃS = - ve
C.ᐃG = + ve, ᐃS = 0
D.ᐃG = - ve, ᐃS = + ve
Solution
H2(l) ⇋ H2O(g)
(1 bar, 373 K) (1 bar, 373K)
At 100o H2O(l) has equilibrium with H2O(g) therefore ᐃG = 0.
Because liquid molecules are converting into gases molecules therefore ᐃS = +ve
Hence (A) is correct.
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