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← ScienceWhich outcome results when pressure is isothermally but significantly increased in a closed system originally at chemical equilibrium?
A)Endothermic products increase disproportionately.
B)Equilibrium shifts toward fewer moles.✓
C)Exothermic reactants now dominate completely.
D)Reaction rate constants will all increase.
💡 Explanation
Increasing the pressure shifts the equilibrium via Le Chatelier's principle, favoring diminished volume because it relieves compressive stress; therefore, more products result, rather than being overcome by temperature changes alone or increases in the forward reaction rate.
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