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The pressure of a gas is 100 k Pa. if i...

The pressure of a gas is 100 k Pa. if it is compressed from 1 `m^(3)` to `10 dm^(3)` , find the work done .

A

99 kJ

B

`-99kJ`

C

`114.9kJ`

D

`-114.9kJ`

Text Solution

Verified by Experts

The correct Answer is:
A
Given, number of moles=2moles
`V_(1)=1m^(3)=1000dm^(3),V_(2)=10dm^(3)`
`therefore` We have, work done `(W)=-p_(ext)dV`
`=-100kPaxx(10-1000)dm^(3)` ltBrgt `=-100kPaxx-999dm^(3)`
`=99900J=99.9kJ`
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