A heat engine using a monatomic gas follows the cyde shown in the pV diagram to
ID: 1311967 • Letter: A
Question
A heat engine using a monatomic gas follows the cyde shown in the pV diagram to the right. The gas starts out at point 1 with a volume of 233 cm3, a pressure of 147 kPa, and a temperature of 317 K. The gas is held at a constant volume while it is heated until its temperature reaches 395 K. The gas is then allowed to expand adiabatically until its pressure is again 147 kPa . The gas is maintained at this pressure while it is cooled back to its original temperature of 317 K . For each stage of this process, calculate in joules the heat Q| transferred to the gas, and the work W^ done by the gas.Explanation / Answer
step 1-2
Q = 12.675J Wgas = 0J
step 2-3
Q = 0J[since process is adiabatic ] Wgas = 5.67 J
step 3-1
Q = -2.8 J W gas = - 4.85J