Question

$2NO_{2} {\rightleftharpoons} N_{2}O_{4}+34\, kcal$ ; reaction moves forward at

• A. low temperature, high pressure
• B. high temperature, low pressure
• C. low temperature, low pressure
• D. high temperature, high pressure

Answer 1

Answer: (A)

low temperature, high pressure

Answer 2

As it is an exothermic reaction, it is favoured at low temperature When the pressure on the system is increased, the volume decreases proportionately. According to be Le Chatelier's principle, the equilibrium will shift in the direction in which there-is decrease in number of moles i.e., towards the direction in which there is decrease in volume