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50 Ltr. of a certain liquid is confined in a piston at the external pressure 100atm. This pressure is suddenly released and liquid is expanded against the constant atmospheric pressure, volume of the liquid increases by 1 Ltr. and the final pressure of the liquid is 10 atm. Find the Work Done. Ans- 1 L.atm

50 Ltr. of a certain liquid is confined in a piston at the external pressure 100atm. This pressure is suddenly released and liquid is expanded against the constant atmospheric pressure, volume of the liquid increases by 1 Ltr. and the final pressure of the liquid is 10 atm. Find the Work Done.
Ans- 1 L.atm

Grade:11

1 Answers

Arun
25750 Points
6 years ago
 
Here eventually both the Pressure and the Volume varied.
Therfore, the Work done by the piston would be => delta(PV) => VdP + PdV
=> 50*(100-10) + 100*1
=> 4500 + 100
=> 4600 J

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