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← ScienceWhich outcome results in a gas-phase reactor when pressure increases?
A)Equilibrium favors fewer gas molecules✓
B)Rate constant directly increases linearly
C)Activation energy barrier decreases sharply
D)Catalyst selectivity greatly reverses phases
💡 Explanation
When pressure increases, the equilibrium position will shift towards fewer gas molecules, because it reduces the total number of moles, which eases the elevated pressure according to Le Chatelier's principle; therefore equilibrium shifts away rather than rate constants changing independently.
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