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Chemical equilibria, Le Chatelier’s principle and Kc​

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Question 5

For this reaction at equilibrium, which combination of temperature and pressure would give the greatest equilibrium yield of products?

2A(g)+B(g)⇌C(g)ΔH=−92 kJ mol−1 2\text{A}(\text{g}) + \text{B}(\text{g}) \rightleftharpoons \text{C}(\text{g}) \quad \Delta H = -92\text{ kJ mol}^{-1} 2A(g)+B(g)⇌C(g)ΔH=−92 kJ mol−1
A

High pressure and high temperature

B

High pressure and low temperature

C

Low pressure and high temperature

D

Low pressure and low 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.

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