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Dihydrogen gas is obtained from natural ...

Dihydrogen gas is obtained from natural gas by partial oxidation with steam as per following endothermic reaction:
`CH_(4)(g)+H_(2)O(g) hArr CO(g)+3H_(2)(g)`
a. Write an expression for K_(p) for the above reaction.
b. How will the value of K_(p) and composition of equilibrium mixture be affected by
i. Increasing the pressure
ii. Increasing the temperature
iii. Using a catalyst?

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