73.8 lbm of air in a rigid container at 11 psia and 400R absorbs 4.03483kW "hr of energy from an electrical resistance heater. For this problem, account for variable specific heats, but do not interpolate. a) Assuming no heat transfer, determine: The final temperature: R The final pressure: psia b) if the final pressure were 26.950 psia, determine: The final temperature: R The heat transferred: Btu