Question

A Carnot engine operates between two reservoirs of temperatures 900 K and 300 K. The engine performs 1200 J of work per cycle. The heat energy (in J) delivered by the engine to the low temperature reservoir, in a cycle, is____.

Answer 1

((Q + 1200)/Q) = 900/300 

Q + 1200 = 3Q

Q = 600 J.

Answer 2

Q_h = (3/2) W = 1800 J

Q_L = Q_h – W = 600 J