The efficiency of the heat engine is 25%. What useful work will the engine do if it receives 800 J of heat from the heater?
| February 14, 2021 | education
By definition, the efficiency is equal to the ratio of useful work to spent, expressed as a percentage, that is:
Efficiency = Ap / A * 100%, where Ap is useful work, A is spent. Then, the required useful work will be equal to:
Ap = (efficiency * A) / 100 = 25 * 800/100 = 200 J.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
