Question

Тепловая машина за цикл получает от нагревателя 50Дж и совершает полезную работу, равную 100Дж.Чему равен КПД тепловой машины?

Answer 1

КПД = 100Дж/50Дж × 100% = 200%

Answer 2

Calculating the Efficiency of a Heat Engine

To calculate the efficiency of a heat engine, we can use the formula:

Efficiency (η) = Useful work output / Heat input

In this case, the heat input is 50 J and the useful work output is 100 J.

Calculation

Using the given values: Heat input (Q1) = 50 J Useful work output = 100 J

We can calculate the efficiency as follows: Efficiency (η) = Useful work output / Heat input Efficiency (η) = 100 J / 50 J Efficiency (η) = 2

So, the efficiency of the heat engine is 2.