Question

2NO₂(g) ⇌ N₂O4 (g);∆H = -52.7 kJ mol^-1 

1. What change will happen if we increase the temperature? 

2. What is the effect of increase in pressure in the above equilibrium?

3. What happens when N₂O₄ is removed from the reaction medium?

Answer 1

1. Since the forward reaction is exothermic, on increasing temperature the rate of backward reaction (endothermic reaction) increases. 

2. Since the number of moles decreases in the forward reaction, on increasing pressure, the rate of forward reaction increases. 

3. Rate of forward reaction increases.