One mole of an ideal monatomic gas undergoes the following four reversible processes :
Step 1 – it is first compressed adiabatically from volume `8.0m^(3)` to `1.0 m^(3)`.
Step 2 – then expanded isothermally at temperature `T_(1)` to volume `10.0 m^(3)`.
Step 3 – then expanded adiabatically to volume `80.0 m^(3)`.
Step 4 – then compressed isothermally at temperature `T_(2)` to volume `8.0 m^(3)`.
Then `T_(1)//T_(2)`

Options

A. 2
B. 4
C. 6
D. 8

Answer

B