The gas pressure inside a piston-cylinder device is initially balanced by atmospheric pressure. the initial pressure is 100 kpa and volume of the gas in the cylinder is 32 cm3. a spring attached to the outside of the piston exerts no force on the piston. the area of the piston is 0.0004 m2. heat transfer to the gas causes the piston to move upwards by a distance of 2 cm. the spring constant is 10 n/cm. (a) determine the final absolute pressure (kpa) of the gas. (b) calculate the final volume (cm3 ) of the gas. (c) show the expansion process on a p-v diag