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For an ideal gas expanding adiabatically...

For an ideal gas expanding adiabatically in vacuum,

A

`DeltaH=0`

B

`DeltaH gt0`

C

`DeltaH lt0`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
A
`DeltaH=DeltaU+PDeltaV`. For expansion of an ideal gas, `DeltaU=0`. For expansion against vacum, `PDeltaV=0` Hence, `DeltaH=0+0=0`
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