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If 1.5 L of an ideal gas at a apressure ...

If 1.5 L of an ideal gas at a apressure of 20 atm expands isothermally and reversibly to a final volume of 15 L, the work done by the gas in L atm is:

A

69.09

B

34.55

C

`-34.55`

D

`-69.09`

Text Solution

Verified by Experts

The correct Answer is:
D
`w_("expansion")=-2.303nRT"log"_(10)((V_(2))/(V_(1)))`
`=-2.303PV" "log_(10)((V_(2))/(V_(1)))`
`=-2.303xx1.5xx20" log "((15)/(1.5))`
`=69.09L" "atm`
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