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← ScienceWhich outcome occurs when compressing a gas-phase reaction at equilibrium with fewer moles of product than reactants?
A)Equilibrium shifts towards product formation✓
B)Reverse reaction rate becomes thermodynamically favored
C)Equilibrium constant (K) increases proportionally
D)Reaction enthalpy changes to counteract compression
💡 Explanation
When compressing a gas-phase system at equilibrium, Le Chatelier's principle dictates the system will respond by shifting to reduce the pressure by favoring the side with fewer moles, leading to shifts toward product formation which increases the reaction yield. Therefore the equilibrium shifts towards production, rather than thermodynamically favoring the reverse reaction, increasing the constant, or changing reaction enthapy without applied catalysts.
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