PG entrance exam CUET PG 2025 Mock Test Chemical Sciences Chemical Thermodynamics Chemical Equilibrium
When a sample of NO2 is placed in a container, this equilibrium is rapidly established:
\(2 \mathrm{NO}_2(\mathrm{~g}) \rightleftharpoons \mathrm{N}_2 \mathrm{O}_4(\mathrm{~g})\)
If this equilibrium mixture is a darker colour at high temperature and at low pressures, which one of these statements about the reaction is true?
1
The reaction is endothermic and N2O4 is darker in colour than NO2.
2
The reaction is endothermic and NO2 is darker in colour than N2O4.
3
The reaction is exothermic and N2O4 is darker in colour than NO2.
4
The reaction is exothermic and NO2 is darker in colour than N2O4.