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During an adiabatic reversibly expansion...

During an adiabatic reversibly expansion of an ideal gas

A

internal energy of the system decreases

B

temperature of the system decreases

C

the value of y changes

D

pressure increases

Text Solution

Verified by Experts

The correct Answer is:
A, B
For an adiabatic process, `DeltaE =W`
`DeltaE =nC_(v)(T_(2)-T_(1))=W`
When gas expands, W is negative.
`T_(2)-T_(1) =-ve`
`rArr` Temperature decreases.
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