A-LevelChemistryEquilibria9701/12 · Feb/Mar 2020 · Q111 Mark
The main stage in the Contact process is an equilibrium reaction. 2SO2 + O2 ⇌ 2SO3 Which row describes the effect of the named condition on the equilibrium yield?
Apresence of catalyst: no effect on yield, high pressure: decreases yield, high temperature: increases yield
Bpresence of catalyst: no effect on yield, high pressure: increases yield, high temperature: decreases yield
Cpresence of catalyst: increases yield, high pressure: decreases yield, high temperature: increases yield
Dpresence of catalyst: increases yield, high pressure: increases yield, high temperature: decreases yield
✓ Correct answer
B: presence of catalyst: no effect on yield, high pressure: increases yield, high temperature: decreases yield
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