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An ideal gas expands from 10^(-3) m^(3) ...

An ideal gas expands from `10^(-3) m^(3)` to `10^(-2) m^(3)` at 300 K against a constant pressure of `10^(5) Nm^(-2)`. The workdone is

A

`-10^(3)kJ`

B

`10^(2)kJ`

C

`-0.9kJ`

D

`-900kJ`

Text Solution

Verified by Experts

The correct Answer is:
C
`W=-p_(ext)(V_(2)-V_(1))`
`=-10^(5)Nm^(-2)(10^(-2)-10^(-3))m^(3)`
`=-10^(5)xx((1)/(100)-(1)/(1000))J=-0.9kJ`
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