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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

`10 kJ`

B

`30 kJ`

C

`20 kJ`

D

`0 kJ`

Text Solution

Verified by Experts

The correct Answer is:
B
b. The heat supplied under these conditions is the change in
internal energy `Q = DeltaU`. The heat suplied is
`Q = i^2Rt = 1 xx 1 xx 100 xx 5 xx 60 = 30, 000 J = 30 KJ` .
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