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If an ideal gas expands isothermally fro...

If an ideal gas expands isothermally from `2xx10^(-3) m^(3)" to "2.2xx10^(-3) m^(3)` against constant pressure of 235 kilopacals at 298 K, then the amount of work done

A

8.4 J

B

4.7 J

C

6.3 J

D

`-47 J`

Text Solution

Verified by Experts

The correct Answer is:
D
`Delta V=(2.2 xx10^(-3)-2xx10^(-3))m^(3)`
`=0.2xx10^(-3) m^(3)=0.2 dm^(3)`
`therefore W=-P Delta V=-235 xx 0.2`
`W=-47 kJ`
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