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(C) When a large liquid drop breaks into smaller droplets,the total volume remains constant,but the total surface area increases.Since surface energy

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Less than $t$

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(C) When a large liquid drop breaks into smaller droplets,the total volume remains constant,but the total surface area increases.Since surface energy is given by $U = T 	imes A$ (where $T$ is surface tension and $A$ is surface area),an increase in surface area leads to an increase in total surface energy.Because the system is isolated from its surroundings,this increase in surface energy must come at the expense of the internal energy of the liquid.As the internal energy of the liquid decreases,its temperature must decrease.Therefore,the temperature of the droplets will be less than $t$.

$A$ liquid drop at temperature $t$,isolated from its surroundings,breaks into a number of droplets. The temperature of the droplets will be

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