O-LevelChemistryRates of Reaction5070/12 · May/June 2023 · Q171 Mark
Hydrogen is made industrially by the reaction shown. CO(g) + H2O(g) ⇌ CO2(g) + H2(g) ΔH = –41 kJ/mol Statements about this industrial process are given. 1 A high pressure can be used to increase the rate of formation of hydrogen. 2 A high pressure can be used to shift the equilibrium to the right. 3 A high temperature can be used to increase the rate of formation of hydrogen. 4 A high temperature can be used to shift the equilibrium to the right. Which statements are correct?
A1, 2 and 3
B1 and 3 only
C1 only
D2 and 4
✓ Correct answer
B: 1 and 3 only
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