please help me with Thermodynamics

The frictionless piston-and-cylinder system shown below is subjected to 1.013 bar external pressure. The piston mass is 241 g, it has an area of 5.5x10^-4 m2, and the initial volume of the entrapped ideal gas is 4.7x10^-5 m3. The piston and cylinder do not conduct heat, but heat can be added to the gas by heating a coil. The gas has a constant-volume heat capacity of 30.1 J/(mol K) and an initial temperature of 298K, and 30 mJ of energy are to be supplied to the gas through the heating coil.

If stops placed at the initial equilibrium position of the piston prevent it from rising, what will be the final temperature and pressure of the gas? And fill in the blank: When Q is applied to a constant V system, P _____

If the piston is allowed to move freely, what will be the final temperature and volume of the gas? And fill in the blank: When Q is applied to a constant P system, V _____