Published by:
CGP EDU Academic Team
Published on: August 14, 2026
N 2 + 3H 2 
2 NH 3 K = 4 × 10 6 at 298
K = 41 at 400 K
Which statements is correct?
A
If N 2 is added at equlibrium condition, the equilibrium will shift to the forward direction because according to II nd law of thermodynamics the entropy must increases in the direction of spontaneous reaction.
B
The condition for equilibrium is 
= 
+ 
where G is Gibbs free energy per mole of the gaseous species measured at that partial pressure.
= + where G is Gibbs free energy per mole of the gaseous species measured at that partial pressure.
C
Addition of catalyst does not change K p but changes Δ H.
D
At 400 K addition of catalyst will increase forward reaction by 2 times while reverse reaction rate will be changed by 1.7 times.
Text Solution
Verified by ExpertsThe correct answer is:
B
When nitrogen is added at equilibrium condition, the equilibrium will shift according to Le-chatelier principle at equilibrium Δ G = 0 and catalyst changes the rate of forward and backward reactions by equal extent. K P of reaction is a function of temperature only.
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