Question

An ideal gas is filled in a closed rigid and thermally insulated container . A coil of 100 oms resistor carrying a current of 1 A for 5 minutes supplies heat to the gas . The change in the internal energy of the gas is

Answer 1

Answer : 30KJ30KJ

Explanation :

Heat supplied : △Q=I2Rt△Q=I2Rt

=1×100×5×60=1×100×5×60

=30KJ=30KJ

Since no change in volume . W =0

Therefore , △Q=△u△Q=△u

Therefore , △u=30KJ

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