Question

тепловой двигатель получил от нагревателя 36 кДж теплоты, а отдал холодильнику 32 кДж! Вычислить КПД двигателя!

Answer 1

КПд=1-Q2/Q1=1-32000/36000=0.11 или 11%

Answer 2

n=Q1-Q2/Q1= 36000-32000/36000 = 0.11=11%

Answer 3

Calculating the Efficiency of the Heat Engine

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

Efficiency = (Useful energy output / Energy input) * 100%

In this case, the useful energy output is the energy delivered to the refrigerator, and the energy input is the heat received from the heater.

Calculation

Given: - Heat received from the heater (Q1) = 36 kJ - Heat delivered to the refrigerator (Q2) = 32 kJ

Using the formula for efficiency:

Efficiency = ((Q1 - Q2) / Q1) * 100%

Substitute the given values:

Efficiency = ((36 - 32) / 36) * 100% = (4 / 36) * 100% = 11.11%

So, the efficiency of the heat engine is 11.11%.