0.2 kg of gas is contained in a rigid tank with a volume of 0.25 m^3. the tank is fitted with a agitator that transfers energy to the gas at a constant rate of 100 w for 0.25 hour. during the process, the internal energy of the gas increases by 10 kj. neglecting changes in kinetic and potential energy occurring during the process, determine the following: a) assumptions b) the specific volume at the final state, in m3/kg. c) the energy transfer by work, in kj, and its sign. d) the energy transfer by heat transfer, in kj, and its direction