fG0 at 500 K for substance ‘S’ in liquid state and gaseous state are +100.7 kcal mol −1 and +103 kcal mol−1 , respectively. Vapour pressure of liquid ‘S’ at 500 K is approximately equal to :
(R=2 cal K−1 mol−1 )
0.1 atm
1 atm
10 atm
100 atm
As we have learnt,
Δ G of equilibrium -
- wherein
At Equilibrum
and
Option 1)
0.1 atm
Option 2)
1 atm
Option 3)
10 atm
Option 4)
100 atm
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