<P> A catalyst increases the rate of a reaction without being consumed in the reaction . The use of a catalyst does not affect the position and composition of the equilibrium of a reaction, because both the forward and backward reactions are sped up by the same factor . </P> <P> For example, consider the Haber process for the synthesis of ammonia (NH): </P> <Dl> <Dd> N + 3 H ⇌ 2 NH </Dd> </Dl> <Dd> N + 3 H ⇌ 2 NH </Dd>

Describe the effect of temperature on equilibrium constant