please help Consider the following four$-$process cycle that is carried out on a system of monatomic ideal gas, starting from state $1$ in which the pressure is $84\mathrm{.}0$ kPa and the volume is $4\mathrm{.}00$ liters. Process A is an isothermal process that triples the volume; process B is a constant volume process that returns the system to a pressure of $84\mathrm{.}0$ kPa; process C is an isothermal process that returns the system to a volume of $4\mathrm{.}00$ liters; and process D is a constant volume process that returns the system to state $1.$ You should sketch a P$-$V diagram for this cycle, to help you understand it$.$ Complete the table below. For each process, and the entire cycle, find the heat added to the gas, the work done by the gas, and the change in internal energy.