Question
Question: Two litres of an ideal gas at a pressure of 10 atm expands isothermally into a vacuum until its tota...
Two litres of an ideal gas at a pressure of 10 atm expands isothermally into a vacuum until its total volume is 10 litres. How much heat is absorbed and how much work is done in the expansion?
A
10 J
B
8 J
C
18 J
D
0 J
Answer
0 J
Explanation
Solution
: q=−W=Pex(10−2)=0(8)=0
For isothermal expansion in vacuum,Pex=0