(III) One mole of monatomic gas undergoes a Carnot cycle with TH = 350°C and TL = 210°C. The initial pressure is 8.8 atm. During the isothermal expansion, the volume doubles. (a) Find the values of the pressure and volume at the points a, b, c, and d (see Fig. 20–7). (b) Determine Q, W, and ∆Eint for each segment of the cycle, (c) Calculate the efficiency of the cycle using Eqs. 20–1 and 20–3.
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