Answer :
(a) The value of equilibrium constant is, 262.163
(b) The value of equilibrium constant is, 611.807
(c) The value of equilibrium constant is, 0.286
Solution :
The relation between the standard Gibbs free energy and equilibrium constant are,
...........(1)
where,
= standard Gibbs free energy
R = universal gas constant = 8.314 J/K/mole
T = temperature =
= equilibrium constant
Now we have to determine the value of
for the following reaction.
(a)

Now put all the given values in the above formula 1, we get:
(b)

Now put all the given values in the above formula 1, we get:
(c)

Now put all the given values in the above formula 1, we get: