Question

A liquid is kept in a closed vessel. If a glass plate of negligible mass with small hole is kept on top of the liquid surface, then vapour pressure of the liquid in the vessel is –

• A. More than what would be if the glass plate were removed
• B. Same as what would be if the glass plate were removed
• C. Lesser than what would be if the glass plate were removed
• D. Cannot be predicted

Answer 1

Answer: (B)

Same as what would be if the glass plate were removed

Answer 2

Glass plate containing hole hence equilibrium is not disturbed.