For a gaseous reaction, the increase in pressure will shift the equilibrium in a direction:
Correct answer: A. Decreased concentration
- A. Decreased concentration
- B. Increased concentration
- C. Constant volume
- D. Increased volume
Explanation
An increase in Pressure supports the side of the reaction which gives the lesser number of moles. Ultimately, the concentration falls in order to compensate for increased pressure. This is Le Chatelier's Principle.
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About Chemical Equilibrium
Reversible reactions reach dynamic equilibrium when forward and reverse rates become equal, and Le Chatelier's principle predicts the effect of changing concentration, pressure or temperature. The chapter also covers solubility product, the common ion effect, buffer action and the conditions used in Haber's process, with equilibrium shifts distinguished from changes in the equilibrium constant.
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625 free Chemical Equilibrium MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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