Solution:
Two 100–liter gas storage tanks each contain air at $2\ bar$. They are connected across a small reversible compressor. The compressor will take up gas from one tank, compress it, and discharge it into the other tank. If tanks, connecting line and compressor are placed in an environmental / thermostatic chamber at $280\ K$. Heat transfer between the components and the chamber is so excellent. Furthermore, the air is assumed to be in ideal gas with $C_P = 29.30\ J / mol \cdot K$. Please estimate the work required to compress the gas in one tank to $3\ bar$?
