A mole of an ideal gas initially at a temperature `T_(1)=290K` expands isobarically until its volume increases 2 times. Next the gas is cooled isochorically to its initial temperature `T_(1)`.Find (a) the incement `DeltaU` in the internal energy of the gas, (b) the work `A` done by the gas (c) the amount of the heat `Q` received by the gas.
