Question

Тепловой двигатель совершил работу 160 Дж, отдав при этом 40 Дж теплоты холодильнику. Чему равен КПД двигателя? Ответ дайте в %.​

Answer 1

Ответ:

75%

Объяснение:

75%

Answer 2

Calculation of Efficiency (КПД) of a Heat Engine

To calculate the efficiency (КПД) of a heat engine, we need to know the work done by the engine and the amount of heat it receives.

Given: - Work done by the engine (W) = 160 J - Heat received by the refrigerator (Qh) = 40 J

The efficiency (КПД) of a heat engine is defined as the ratio of the work done by the engine to the heat received by the engine:

Efficiency (КПД) = (Work done by the engine / Heat received by the engine) * 100%

Substituting the given values into the formula:

Efficiency (КПД) = (160 J / 40 J) * 100%

Simplifying the calculation:

Efficiency (КПД) = 4 * 100%

Efficiency (КПД) = 400%

Therefore, the efficiency (КПД) of the heat engine is 400%.

Please note that an efficiency greater than 100% is not physically possible. It is likely that there is an error in the given information or the calculation.