0.06 moles of a monatomic gas undergoes the cycle A ?B?C?A as shown on the P-V d

Question

0.06 moles of a monatomic gas undergoes the cycle A ?B?C?A as shown on the P-V diagram below.

0.06 moles of a monatomic gas undergoes the cycle A ?B?C?A as shown on the P-V diagram below. (a) In the transition A?B the gas expands adiabatically from 1x10-3 to 2x10-3 m3 and the temperature drops from 600K to 400K. During this transition the internal energy reduces by 149 J. What is the work done on the gas? J (b) During the transition B?C, the volume decreases from 2x10-3 m3 liters to 1x10-3 m3 liter at constant pressure (isobaric). What is the work done on the gas? J (c) During the isobaric (constant pressure) transition B?C, what is the heat transferred to the gas? I have also guessed 98, -79.56, and -71.02. The answer IS a negative number. Your response differs from the correct answer by more than 10%. Double check your calculations.J (d) During the constant volume (isovolumetric) transition C?A, the internal energy increases by 299 J. What is the heat transferred to the gas? J (e) For the cycle A?B?C?A, what is the efficiency of the heat engine? % PLEASE HELP ME WITH PART E, Thanks :) (f) What is the efficiency for a Carnot cycle running between 200K and 600K. %

Explanation / Answer

part C total heat is -249.2 Total work done/positive heat=49.232/299=1/6=0.166

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