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A gas expands from 75 litres to 125 litr...

A gas expands from 75 litres to 125 litres constant pressure of 4 atmosphere. Work done by the gas during this change is `(10atm=10^(5)Nm^(-2))`

A

50 kJ

B

40 kJ

C

30 kJ

D

20 kJ

Text Solution

Verified by Experts

The correct Answer is:
D
`P=4xx10^(5)Pa,V_(2)-V_(1)`
=50 litres
`=50xx10^(-3)m^(3)`
`W=PdV`
`=4xx10^(5)xx50xx10^(-3)`
`=20xx10^(3)J`
=20 KJ
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