An ideal gas expands from the volume of `1xx10^(-3)m^3` to `1xx10^(-2) m^3` at 300K against a constant pressure at `1xx10^5 Nm^(-2)`. The work done is ___

Explanation

`DeltaV=V_2-V_1=1xx10^(-2) -1xx10^(-3)m^3`
`=1xx10^(-1) m^3=0.1 m^3`
T=300 K
`P=1xx10^5 Nm^2`
`w=-P.DeltaV`
`=1xx10^5 Nm^2 (1xx10^(-2)-1xx10^(-3))m^3`=-900 J