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A gas expands from a volume of 1 m^(3) t...

A gas expands from a volume of `1 m^(3)` to a volume of `2m^(3)` against an external pressure of `10^(5) N m^(-2)` . The work done by the gas will be

A

`10^(5) kJ`

B

`10^(2) kJ`

C

`10^(2) J`

D

`10^(3) J`

Text Solution

Verified by Experts

The correct Answer is:
B
Work done, `w = - p. Delta V`
`= - 10^(5) Nm^(-2) (2 - 1) m^(3)`
`= - 10^(5) N - m`
`= - 10^(5) J or - 10^(2) kJ`
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