How many joules is the internal energy of ether vapors at 35 ° C and normal atmospheric pressure greater than the internal

How many joules is the internal energy of ether vapors at 35 ° C and normal atmospheric pressure greater than the internal energy of liquid ether of the same mass at the same temperature?

Vapor energy is greater by the amount of heat of vaporization equal to 0.4 MJ / kg

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