The thermodynamic efficiency of a heat engine is calculated by dividing the work output of the engine by the heat input to the engine.

The Carnot efficiency is the maximum possible efficiency of a heat engine operating between two reservoirs at different temperatures.

The Carnot efficiency is directly proportional to the difference in temperature between the two reservoirs.

Increasing the temperature of the hot reservoir increases the Carnot efficiency.

Increasing the temperature of the cold reservoir decreases the Carnot efficiency.

No, a heat engine cannot be more efficient than the Carnot efficiency.

The efficiency of a reversible heat engine operating between two reservoirs at the same temperature is 0%.

The efficiency of a Carnot heat engine operating between two reservoirs at 300 K and 600 K is 66.7%.

The efficiency of a heat engine that absorbs 100 J of heat and does 40 J of work is 40%.

The efficiency of a heat engine that absorbs 200 J of heat and does 120 J of work is 60%.

The efficiency of a heat engine that absorbs 300 J of heat and does 180 J of work is 60%.

The efficiency of a heat engine that absorbs 400 J of heat and does 240 J of work is 60%.

The efficiency of a heat engine that absorbs 500 J of heat and does 300 J of work is 60%.

The efficiency of a heat engine that absorbs 600 J of heat and does 360 J of work is 60%.

The efficiency of a heat engine that absorbs 700 J of heat and does 420 J of work is 60%.