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Pure ammonia is placed in a vessel at a ...

Pure ammonia is placed in a vessel at a temperature where its dissociation constant `(alpha)` is appreciable. At equilibrium,

A

`K_(p)` does not change significantly with pressure

B

`alpha` does not change with pressure

C

The concentration of `NH_(3)` does not change with pressure.

D

The concentration of hydrogen is less than that of nitrogen.

Text Solution

Verified by Experts

The correct Answer is:
A
The equilibrium constant does not change at all with changes in concentrations, pressure, presence of catalyst, etc. It changes only with changes in temperature of the system. For endothermic reaction, the value of K increases with increase in temperature and vice versa. For exothermic reaction, the value of K decreases with increase in temperature and vice versa.
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