(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A Carnot engine has 40 g of helium gas as its working substance. It operates between two reservoirs of temperatures T1 = 400°C and T2 = 60°C. The initial volume of the gas is V1 = 2.0 X 10-2 m3, the volume after isothermal expansion is V2 = 4.0 X 10-2 m3, and the volume after the subsequent adiabatic expansion is V3 = 5.0 X 10-2 m3.

(a) Calculate the work generated by this engine during one cycle.

(b) Calculate the heat absorbed and the waste heat ejected during one cycle.

2. Relevant equations

3. The attempt at a solution

I'm not sure how tor eally start this problem...

I calculated the effiency of the carnot engine via this:

1-333K/673K-->0.505201

At this point, I wasn't sure how to treat an isothermal expansion. I know that delta U=0, and delta Q= delta W.

I'mnotlooking for someone to do this for me. I would really appreciate it though, if someone could give me a clue where to start. Thanks.

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# Homework Help: Thermodynamics - Carnot Engine

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