Carnot cycle problem - Is it thermodynamically possible to do 500J of work?

[cmkc109]

Homework Statement

2. The attempt at a solution

Is it only possible when 600J of heat is exhausted and 400J of heat is converted into work? Is the 600J heat will enter the cold reservoir and available to do work again?

q1/T hot + q3 / T cold = 0
q3 = 600 when T = 300K

 

[Greg Bernhardt]

Thanks for the post! Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post?

 

[rude man]

Homework Statement

q1/T hot + q3 / T cold = 0

Good.

q3 = 600 when T = 300K

where did this come from?

Use your previous equation but make it an inequality, not an equation, reflecting the fact that net entropy can only increase or stay at zero.
You are given q1, q3, Thot and Tcold.