An ideal gas goes through a cycle consisting of alternate isothermal and adiabatic curves (Fig. 2.2). The

Question:

An ideal gas goes through a cycle consisting of alternate isothermal and adiabatic curves (Fig. 2.2). The isothermal processes proceed at the temperatures T1, T2, and T3. Find the efficiency of such a cycle, if in each isothermal expansion the gas volume increases in the same proportion.