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A number of droplets, each of radius r, ...

A number of droplets, each of radius `r`, combine to form a drop of radius `R`. If `T` is the surface tension, the rise in temperature will be

A

`(2T)/(rJ)`

B

`(3T)/(rJ)`

C

`(3T)/(J) (1/r - 1/R)`

D

`(2T)/(J) (1/r -1/R)`

Text Solution

Verified by Experts

The correct Answer is:
C
Rise in temperature `= (3T)/(J) = (1/r - 1/R)`
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