Chemistry - Chemical Equilibrium Question with Solution | TestHub

Question Explanation:  

Which equilibrium favoured by low temperature and low pressure.

Concept:

This question is based on Le-chatelier's principle.

Solution

Temp.↓ equilibrium shift forward for exothermic reaction where heat is released

Pressure ↓ equilibrium shift forward when number of gaseous moles increases on product side

for $2{\mathrm{O}}_3(\mathrm{g})\rightleftharpoons 3{\mathrm{O}}_2(\mathrm{g});\Delta {\mathrm{H}}^{\mathrm{o}}=-285\mathrm{kJ}$

Low temperature & low pressure is favoured for forward direction.