Question

When `NaNO_(3)` is heated in a closed vessel, oxygen is liberated and `NaNO_(2)` is left behind. At equlibrium
A. Addition of `NaNO_(2)` favours reverse reaction
B. Addition of `NaNO_(3)` favours forward reaction
C. Increasing temperatue favours forward reaction
D. Increasing pressure favours reverse reaction

Answer 1

Correct Answer - C::D
`2NaNO_(3)hArr2NaON_(2)+O_(2)`
According to Le-chatelier principle an increase in pressure always favours the reactin, where volume or moles decrease (i.e., reverse direction). As heat is added, i.e., reactin is endothermic and is supported in forward direction with increase in temperature.