The surface tension and vapour pressure of water at 
is 
and 
Pa respectively. The radius of the smallest spherical water droplet which can form without evaporating at 25°C is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Here, 
The drop will evaporate if the water pressure is greater than the vapour pressure P.
As 
,Where R is the radius of drop
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