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A thermally insulated rigid container co...

A thermally insulated rigid container contain an ideal gas heated by a filament of resistance 30Ω through a current of 2A for 3 min, then change in internal energy is

A

0 KJ

B

10 kJ

C

20 KJ

D

30 KJ

Text Solution

Verified by Experts

The correct Answer is:
D
V = constant, `DeltaW = 0`
`DeltaQ = DeltaU implies DeltaU = i^(2)` Rt
`implies DeltaU = 1^2 xx100xx5xx60`
= 30 KJ.
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