Equilibrium constant $K_p$ for homogeneous systems (A-level only)

EasyMedium
123456
Question 5
Easy

An equilibrium mixture of carbon monoxide, chlorine, and carbonyl chloride is established in a sealed container of fixed volume:

CO(g)+Cl2(g)⇌COCl2(g)ΔH=−108 kJ mol−1 \text{CO}(\text{g}) + \text{Cl}_2(\text{g}) \rightleftharpoons \text{COCl}_2(\text{g}) \quad \Delta H = -108 \text{ kJ mol}^{-1} CO(g)+Cl2​(g)⇌COCl2​(g)ΔH=−108 kJ mol−1

The temperature of this mixture is increased and the system is allowed to reach a new equilibrium.

Which of the following is smaller for the new equilibrium than for the original equilibrium?

The total pressure of the mixture

The mole fraction of carbon monoxide

The value of the equilibrium constant, KpK_{\text{p}}Kp​

The partial pressure of chlorine

Equilibrium constant $K_p$ for homogeneous systems (A-level only) Questions

  1. A Level
  2. /Chemistry
  3. /Equilibrium constant $K_p$ for homogeneous systems (A-level only)