Question

Two kilograms of air is contained in a rigid well-insulated tank with a volume of 0.6 m3. The tank is fitted with a paddle wheel that transfers energy to the air at a constant rate of 10W for 1 h. If no changes in kinetic or potential energy occur, determine (a) the specific volume at the final state, in m3/kg, (b) the energy transfer by work, in kJ. And (c) the change in specific internal energy of the air, in kJ/kg.

Answer 1

Answers:

0.833 m³/kg

-14.4 kJ

20 kJ/kg