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Liquids and Gases on Chemical Engineering related Questions and Answers


Question :   A piston cylinder expands from 7 liter to 15 liter with the external pressure of 500 Pa, what is the work done by the system?
1. – 1.5 Joule
2. – 4 Joule
3. 1.5 Joule
4. 4 Joule
Answer :   2 - – 4 Joule  

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