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  • When a gas expands adiabatically Option: 1 The system should allowed to expand slowly  O

When a gas expands adiabatically 

Option: 1

The system should allowed to expand slowly  


Option: 2

Internal energy of gas is used in doing work 


Option: 3

Law of conservation of energy does not hold 


Option: 4

No energy is required for expansion 


Answers (1)

best_answer

As we have learned

Condition of Adiabatic Process -

1)    There should not be any exchange of heat between system and surrounding.

2)     The system should be compressed or expand suddenly.

- wherein

No process is perfectly adiabatic e.g. sudden burst of a tyre.

 

 \Delta Q = \Delta U + \Delta W = 0 \\\\ \Delta W = - \Delta U

If \Delta W is positive i.e gas does work then \Delta U should be negative meaning internal energy is used in doing work 

 

 

 

 

Posted by

Rishabh

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