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The specific internal energy of helium at 300 K and 1 atm is 3800 J/mol, and...

The specific internal energy of helium at 300 K and 1 atm is 3800 J/mol, and the specific molar volume at the same temperature and pressure is 24.63 L/mol. Calculate the specific enthalpy of helium at this temperature and pressure in units of J/mol.


At what rate (in units of kW) is enthalpy transported by a stream of helium at 300 K and 1 atm with a molar flowrate of 250 kmol/h?


The specific internal energy of a fluid is 200 cal/g. What is the internal energy of 25 g of this fluid, in units of cal?

If the fluid leaves a system at a flow rate of 3 g/min, at what rate, in units of cal/min, does it transport internal energy out of the system?

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