The specific internal energy of helium at 300k and 1 atm pressure is 3800j/mol and the specific molar volumeat thesame temp. and pressure is 24.63l/mol. Calculate the specific enthalpy of helium at this temp. and pressure and the rate at which enthalpy is transported by a stream of helium at 300k and 1atm whose molar flowrate is 250kmol/hr.