An ideal gas undergoes an isothermal expansion along a path ab, adiabatic expansion along bc, isobaric compression along cd, isothermal compression along de, an

An ideal gas undergoes an isothermal expansion along a path AB, adiabatic expansion along BC, isobaric compression along CD, isothermal compression along DE, and adiabatic compression along EA, as shown. The work done by the gas along process BC is 10J. The change in internal energy along process EA is 16J. The absolute value of the change in the internal energy along the process CD is