5. A vertical piston-cylinder assembly containing a gas is placed on a hot plate. The piston initially rests on the stops. With the onset of heating, the gas pressure increases. Stops Patm 1 bar Piston Gas -m = 50 kg -A=0.01 m -Hot plate (a) At what pressure (in bar) does the piston start rising? The piston moves smoothly in the cylinder, and g = 9.81 m/s. (b) Describe whether the processes are isobaric, isochoric, or isothermal processes. (c) Describe whether the processes are transient or steady state. Hint: This problem consists of two processes: 1) a process before the piston rises and 2) a process after the piston rises.