Section: Thermodynamics | Type: NAT | Marks: 1
Air at 400 K and 200 kPa is heated at constant pressure to 600 K. Assuming that the internal energy is a function of temperature only, the magnitude of change in internal energy during this process is ____________ kJ/kmol (rounded off to one decimal place). Use the following data: Molar specific heat of air at constant volume: πΜ π£ (kJ/kmol-K) = π+ ππ+ ππ2 where π is temperature in K, π = 19.686 kJ/kmol-K, π = 0.002 kJ/kmol-K2 and π= 0.5 Γ 10β5 kJ/kmol-K3.
Answer: 4389 to 4392