A rigid insulated tank contains 2 kg of a gas at 300 K and 100 kPa. A

Question:

A rigid insulated tank contains 2 kg of a gas at 300 K and 100 kPa. A 1 kW internal heater is turned on.
(a) Determine the rate of change of total stored energy (dE/dt).
(b) If the internal energy of the gas is related to the temperature by u = 1.1T (kJ/kg), where T is in Kelvin, determine the rate of temperature increase.