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A cylinder filled with a movable piston contains liquid water in equilibrium with water vapour at 25°c . Which one of the following operations results in a decrease in equilibrium vapour pressure? 1. Moving piston downward a short distance 2. Removing a small amount of vapour 3. Removing a small amount of the liquid water 4. Dissolving salt in the water |
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Answer» A cylinder filled with a movable piston contains liquid water in equilibrium with water vapour at 25°c . Which one of the following operations results in a decrease in equilibrium vapour pressure? 1. Moving piston downward a short distance 2. Removing a small amount of vapour 3. Removing a small amount of the liquid water 4. Dissolving salt in the water |
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