Question

A Carnot engine absorbs 1000 J of heat energy from a reservoir at 127°C and rejects 600 J of heat energy during each cycle. The efficiency of the engine and temperature of the sink will be:

Options

• 20% and −43°C

• 40% and −33°C

• 50%  and −20°C

• 70% and −10°C

Answer 1

40% and −33°C