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Assume that liquid drop evaporates by decreasing in its surface energy so that its temperature remains unchanged. The surface tension of liquid drop is T, density of liquid is and L is latent heat of vapouration of liquid. What should be the minimum radius of the drop for this to be possible
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Correct option is D
being that,
T = surface tension
the density of the liquid: ρ
L = latent heat
We know that,
Decreased surface energy equals heat required for vaporization
Now,
decrease in surface energy
Now, the latent heat needed for vaporization
From equation 1 and 2
Hence the correct answer is
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