Skip to content

Course home

Sign up

Chemical equilibria, Le Chatelier’s principle and Kc​

EasyMedium
1234567
Question 4

Which change leads to a higher concentration of SO3(g)\text{SO}_3(\text{g})SO3​(g) in this equilibrium mixture?

2SO2(g)+O2(g)⇌2SO3(g)ΔH=−197 kJ mol−1 2\text{SO}_2(\text{g}) + \text{O}_2(\text{g}) \rightleftharpoons 2\text{SO}_3(\text{g}) \quad \Delta H = -197\text{ kJ mol}^{-1} 2SO2​(g)+O2​(g)⇌2SO3​(g)ΔH=−197 kJ mol−1
A

higher temperature

B

lower pressure

C

use of a catalyst

D

lower temperature

Markscheme

Chemical equilibria, Le Chatelier’s principle and Kc Questions

  1. A Level
  2. /Chemistry
  3. /Chemical equilibria, Le Chatelier’s principle and Kc

24 exam-style questions on AQA A Level Chemistry Chemical equilibria, Le Chatelier’s principle and $K_c$, covering Chemical equilibria and Le Chatelier's principle and Equilibrium constant $K_c$ for homogeneous systems. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank