Question

(I) What is the effect of pressure on the equilibrium of the reaction between nitrogen and oxygen to give nitric oxide ?
(II) In a reversible reaction, some amount of heat energy is liberated in th forward reaction. Name the reaction . What change in temperature favours the forward reaction ?

Answer 1

(i) `N_(2) + O_(2) hArr 2NO`
As the total number of moles on reactants side and products side is same, there is no effect of pressure on the equilibrium .
(ii) In a reversible reaction, evolution of heat indicates that it is an exothermic reaction and `DeltaH=-ve`
For example ,`A + B hArr C+B + ` Energy
Hence, low temperature favours the formation of products.