Two identical samples of a gas expands so that volume is doubled. The first sample undergoes isothermal expansion while the second is expanded adiabatically. The final pressure:

Options

A. in first sample is greater
B. in second sample is greater
C. equal in both samples
D. nothing can be said.

Answer

A

Explanation

Since slope of adiabatic graph is `gamma`-times more than slope of isothermal process. These final pressure is more is isothermal process than adiabatic process.
Thus, correct choice is (a).