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An ideal monoatomic gas is confined by a spring loaded massless piston of cross section 8*10 -3 m 2 . Initially the gas is at 300 K and occupies a volume of 2.4*10 -3 m 3 and the spring is in its relaxed state. The gas is heated by an electric heater until the piston moves out slowly without friction by 0.1 m. Calculate: (a) The final temperature of the gas and (b) the heat supplied by the heater. The force constant of the spring is 800 N/m, atm pressure is 1.0 * 10 5 N/m 2 . The cylinder and the piston are thermally insulated.


An ideal monoatomic gas is confined by a spring loaded massless piston of cross section 8*10-3 m2. Initially the gas is at 300 K and occupies a volume of 2.4*10-3 m3 and the spring is in its relaxed state. The gas is heated by an electric heater until the piston moves out slowly without friction by 0.1 m. Calculate:
 
(a) The final temperature of the gas and
(b) the heat supplied by the heater.
 
The force constant of the spring is 800 N/m, atm pressure is 1.0 * 105 N/m2. The cylinder and the piston are thermally insulated.


Grade:10

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