The entropy change involved in the isothermal reversible expansion of 2 moles of an ideal gas from a volume of 10dm3 to a volume of 100dm3 at 27°C is:
38.3 J mol-1 K-1
35.8 J mol-1 K-1
32.3 J mol-1 K-1
42.3 J mol-1 K-1
Entropy for isothermal process -
or
- wherein
= 38.3 J mol-1K-1
Option 1)
38.3 J mol-1 K-1
correct
Option 2)
35.8 J mol-1 K-1
Incorrect
Option 3)
32.3 J mol-1 K-1
Incorrect
Option 4)
42.3 J mol-1 K-1
Incorrect