Two litres of an ideal gas at a pressure...

Two litres of an ideal gas at a pressure of 10 atm expands isothermally at `25^(@)C` into a vacuum until its total volume is 10 litres. How much heat is absorbed and how much work is done in the expansion ?

10 J, 10 J

8 J, 10 J

18 J, 0 J

0 J, 0 J

Text Solution

Verified by Experts

The correct Answer is:

`q=-w=P_(ex)(10-2)=0(8)=0`
For isothermal expansion in vacuum, `P_(ex)=0`

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