A heat engine draws 800J of heat from its high temperature source and discards 450J of exhaust heat into its cold temperature reservoir during each cycle.How much work does this engine perform per cycle?
To determine the work performed by the heat engine per cycle, we can apply the first law of thermodynamics, which states that the net work done by the engine is equal to the difference between the heat absorbed from the high-temperature source and the heat released to the low-temperature reservoir.
In this case, the engine absorbs 800J of heat from the high-temperature source and rejects 450J of heat to the low-temperature reservoir. Thus, the net work done by the engine per cycle can be calculated as follows:
Net work done = Heat absorbed - Heat released
= 800 J - 450 J
= 350 J
Therefore, the heat engine performs 350J of work per cycle.