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Latent Heat of Vaporization

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Three identical beakers 1,2 and 3 are taken and 20 ml water is poured in each beaker. Now, the beakers are heated at a temperature of 20 degree Celsius, 30degreecelcius and 40degreecelcius respectively.
The increasing order of the rate of evaporation in the three beakers is
a)beaker 1 < beaker 2 < beaker 3
b)beaker 3 < beaker 2 < beaker 1

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Solution

Higher the temperature, higher will be the kinetic energy and higher will be the rate of evaporation.
Thus the order of evaporation is
beaker 1 < beaker 2 < beaker 3

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