A gas enclosed in a container fitted witha piston ofcross-sectional area .10m^2. The pressure of the gas ismaintained at 8000 Pa whil energy is slowly added by heat as aresult the piston is pushed up distance of 4.0 cm.
A. If 42 J of energy is added to the system by heat duringthe expansion what is the change in internal energy of the system.
B. If 42 J of energy is added by heat to the sytem withthe piston clamped in fixed position what is the work done by thegas? What is the chang in its internal energy?