A-LevelChemistryEquilibria9701/12 · Oct/Nov 2015 · Q81 Mark
Hydrogen can be obtained by reacting methane with steam. CH4(g) + H2O(g) ⇌ CO(g) + 3H2(g) ΔH° = +210 kJ mol-1 Which conditions of pressure and temperature will give the greatest equilibrium yield of hydrogen?
Apressure: high, temperature: high
Bpressure: high, temperature: low
Cpressure: low, temperature: high
Dpressure: low, temperature: low
✓ Correct answer
C: pressure: low, temperature: high
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