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# A cylinder is fitted with a freely moveable piston of area 1.20 x 10-² m² and negligible mass. The cylinder

below the piston is filled with a gas. At state 1, the gas has volume 1.50 x 10-3 m³, pressure 1.02 x 10^5 Pa

and the cylinder is in contact with a water bath at a temperature of 0°C. The gas is then taken through the

following four-step process.

A 2.50 kg metal block is placed on top of the piston, compressing the gas to state 2, with the gas

still at 0°C.

• The cylinder is then brought in contact with a boiling water bath, raising the gas temperature to

100°C at state 3.

.The metal block is removed and the gas expands to state 4 still at 100°C.

Finally, the cylinder is again placed in contact with the water bath at 0°C, returning the system to

state 1

(a) Determine the pressure of the gas in state 2.

(b) Determine the volume of the gas in state 2.

(c) Indicate below whether the process from state 2 to state 3 is isothermal, isobaric, or adiabatic.