Consider a piston–cylinder assembly containing 0.12 kg of nitrogen initially at 700 K and 300 kPa (state 1). The piston moves such that the final volume of the nitrogen (state 2) is three times larger than the initial volume (state 1). The process occurs at constant temperature. Plot the process on P–v and T–v coordinates. Assuming a constant value of the constant-pressure specific heat of 1.067 kJ/kg · K for the N₂, determine the following quantities: ₁W₂, ΔU, ΔΗ, and ₁Q₂. Give units.