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A piston filled with 0.04 mol of an idea...

A piston filled with 0.04 mol of an ideal gas expands reversibel from 50.0 mL to 375 mL at a constant temperature of `37.0^(@)C`. As it does so it absorbs 208 J of heat. Thevalues of q and w for the process will be (R=8.314J/molK)in 7.5=2.01)

A

`q=-208J,w=-208J`

B

`q=-208J,w=+208J`

C

`q=+208J,w=+208J`

D

`q=+208J,w=-208J`

Text Solution

Verified by Experts

The correct Answer is:
D
Process is isothermal reversible
expansion hence
`DeltaU=0`
`:.q=-w`
As `q=+208J`
Hence `w=-208J`
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A piston filled with 0.04 mol of an ideal gas expands reversibly from 50.0 mL to 375 mL at a constant temperature of 37.0^(@)C . As it does so, it absorbs 208 J of heat. The value of q and w for the process will be: (R=8.314J//molK)(ln 7.5=2.01)

A piston filled with 0.04 mole of an ideal gas expands reversible from 50.0 mL to 375 mL at a constant temperature of 37.0^(@)C . As it does so, it absorbs 208 J of heat. The values of q and w for the process will be: (R=3.14J/molK) (in 7.5=2.01)

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