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16 g off oxygen gas expands isothermally and reversibly at 300 K from 10 `dm^(3)` to 100 `dm^(3)`. The work done is (in J)

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16 g off oxygen gas expands isothermally and reversibly at 300 K from 10 `dm^(3)` to 100 `dm^(3)`. The work done is (in J)
A. zero
B. `-2875J`
C. `+2875J`
D. infinite
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Correct Answer - B
`W=-2.303" nRT log"(V_(2))/(V_(1))`
`=-2.303xx(16)/(32)xx8.314xx300xx"log"(100)/(10)`
`=-2872J=-2875`J
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