Latent heat of vapourisation of a liquid at 500k and 1atm pressure is 10K. Cal/mole. What is the change in internal energy when 3 moles of the liquid is vapourised at the same temperature

Latent heat of vapourisation of a liquid at 500k and 1atm pressure is

1.	Latent heat of vapourisation of a liquid at 500k and 1atm pressure is 10K. Cal/mole. What is the change in internal energy when 3 moles of the liquid is vapourised at the same temperature
Answer» `27K.Cal ` `7K.Cal ` `33K.Cal` `25K.Cal ` ANSWER :A