Question 1
An ideal Carnot heat engine has an efficiency of 0.600. If it operates between a deep lake with a constant temperature of

and a hot reservoir, what is the temperature of the hot reservoir?
◦ 490 K
◦ 784 K
◦ 735 K
◦ 470 K
Question 2
An ideal Carnot engine extracts 529 J of heat from a high-temperature reservoir during each cycle, and rejects

of heat to a low-temperature reservoir during the same cycle. What is the efficiency of the engine?
◦ 1.35
◦ 2.35
◦ 0.7
◦ 0.57