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An ideal gas is filled in a closed rigid...

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

A

zero

B

10kJ

C

20kJ

D

30kJ

Text Solution

Verified by Experts

W = 0. Therefore, from first law of thermodynamics , `Delta U=Delta Q-i^2Rt=(1)^2 (100) (5 times60)J=30kJ`
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