When `NaNO_(3)` is heated in a closed vessel, oxygen is liberated and `NaNO_(3)` is left behind. At equilibrium,

Options

A. Addition of `NaNO_(2)` favours reverse reaction.
B. Addition of `NaNO_(3)` fovours forward reaction
C. Increasing the temperature favours forward reaction.
D. Increasing the pressure favours reverse reaction.

Answer

C, D

Explanation

`2NaNO_(3)(s) hArr 2NaNO_(2)(s)+O_(2)(g)`
`DeltaH`=positive, endothermic
Addition of solids does not affect the equilibrium.
Endothermic reaction is favoured by increase in temperature.
Increased pressure shifts the equilibrium in the direction of less gaseous moles.