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70 calories of heat required to raise th...

70 calories of heat required to raise the temperature of 2 moles of an ideal gas at constant pressure from `30^@Cto 35^@C.` The amount of heat required (in calories) to raise the temperature of the same gas through the same range `(30^@C to 35^@C)` at constant volume is:

A

28J

B

50Cal

C

75J

D

Zero

Text Solution

Verified by Experts

The correct Answer is:
B
`DeltaQ_(P)=nC_(P)DeltaT,`
`C_(P)-C_(v)=RrArrC_(v)=C_(p)-R`
`DeltaU=nC_(v)DeltaT`
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