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What is the statement of the Kelvin effect in fluid droplets?

(a) Vapour pressure about a droplet decreases with decrease in diameter of the droplet

(b) Vapour pressure about a droplet increases with decrease in diameter of the droplet

(c) Vapour pressure of the droplet is independent of the diameter of the droplet

(d) Vapour pressure of the droplet varies with the diameter of the droplet as well as the temperature

The question was asked by my college director while I was bunking the class.

I'm obligated to ask this question of Aerosols in portion Particulates, Acid Rain & Aerosols of Environmental Engineering

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The correct choice is (b) Vapour pressure about a droplet increases with decrease in diameter of the droplet

The explanation: The Kelvin effect is a phenomenon where the vapour pressure of the droplet increases with decrease in diameter of the droplet.

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