The vapour pressure of water at 20^(@)C ...

The vapour pressure of water at `20^(@)C` is `17.54 mmHg`. What will be the vapour pressure of the water in the apparatus shown after the piston is lowered, decreasing the volume of the gas above the liquid to one half of its initial volume (assume temperature is constant).

8.77 mmHg

17.54 mmHg

35.08mmHg

Between 8.77 and 17.54 mmHg

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