Question

In an ideal adiabatic gas expansion,

• A. entropy change in the gas itself is 0.
• B. entropy change of the surrounding amosphere is zero.
• C. entropy change of the surrounding amosphere + entropy change in the gas itself > 0
• D. all of the above

Answer 1

Answer: (A), (B)

The correct options are
A entropy change of the surrounding amosphere is zero.
B entropy change in the gas itself is 0.

In an adiabatic gas expansion, there is no change in entropy of the gas as there is no exchange of heat in this process.