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Under isothermal condition, a gas at 300...

Under isothermal condition, a gas at 300 K expands from 0.1 L to 0.25 L against a constant external pressure of 2 bar. The work done by the gas is : [Given that 1 L bar = 100 J]

A

`- 30J`

B

`5kJ`

C

`25J`

D

`30J`

Text Solution

Verified by Experts

The correct Answer is:
A
`:. W_(m)= -P_(m) DeltaV`
`= -2 "bar" xx (0.25- 0.1)L`
`= - .30 "Lbar"`
`=- 0.3 xx 100 Jimplies -30 J`
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Knowledge Check

  • Under isothermal conditions, a gas at 300 K expands from 0.1 L to 0.25 L against a constant external pressure of 2 bar.The work done by the gas is [ Given that 1 L bar = 100 J]

    A
    30 J
    B
    `-30 J`
    C
    5 kJ
    D
    25 J

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    A
    `-9.0`
    B
    `+10.0`
    C
    `-0.9`
    D
    `-2.0`

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    A
    `243.19 J`
    B
    `-243.19 J`
    C
    `234.19 J`
    D
    `-234.19 J`

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