A gas in a vertical piston-cylinder device has a volume of 0.5 m3 and a temperature of 400 K. The piston has a mass of 50 kg and a cross-sectional area of 0.2 m2. As the gas cools down to atmospheric temperature the volume decreases to 0.375 m3. Neglect friction and assume atmospheric pressure to be 100 kPa. Determine
(a) The work transfer during the process.
(b) What-if Scenario: What would the work transfer be if the piston weight were considered negligible?