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Chemical equilibria, Le Chatelier’s principle and $K_c$

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Question 1

In the industrial production of hydrogen gas, methane is reacted with steam according to the following reversible reaction:

CH4(g)+H2O(g)⇌CO(g)+3H2(g)ΔH=+206 kJ mol−1 \text{CH}_4(g) + \text{H}_2\text{O}(g) \rightleftharpoons \text{CO}(g) + 3\text{H}_2(g) \quad \Delta H = +206\text{ kJ mol}^{-1} CH4​(g)+H2​O(g)⇌CO(g)+3H2​(g)ΔH=+206 kJ mol−1

Which combination of pressure and temperature will maximise the equilibrium yield of hydrogen gas?

High pressure and high temperature

High pressure and low temperature

Low pressure and high temperature

Low pressure and low temperature

Chemical equilibria, Le Chatelier’s principle and $K_c$ Questions

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