Please do not place your response in a .pdf or .cdx format, but Word documents are okay. Thanks!
Here's the actual problem:
A heat engine using 3.30 grams of helium gas is initially at STP. The gas goes through the following closed cycle:
-Isothermal compression until the volume is halved.
-Isobaric expansion until the volume is restored to its initial value.
-Isochoric cooling until the pressure is restored to its initial value.
A) How much work does this engine due per cycle? Express your answer in joules.
B) What is its thermal efficiency? Express your answer in percent.© BrainMass Inc. brainmass.com October 24, 2018, 6:03 pm ad1c9bdddf
A) Molecular weight of Helium = 4 grams/mol
Number of moles of Helium = 3.30/4 = 0.825 mol
Initial Volume = V1 = 22.4L = 0.0224 m^3
V2 = V1/2 = ...
A work of an engine per cycles are given. Isothermal compression until the volume is halved is discussed.
P-V Diagram/Entropy Change
On the attached file, I need parts c and d from #9. You'll see that I already did parts a and b.View Full Posting Details