Question

ПОМОГИТЕ ПОЖАЛУЙСТА ДАЮ 20 БАЛЛОВ СРОЧНО!!!! Вычислите КПД идеальной тепловой машины если температура нагревателя 193 градуса °С, если температура холодильника 30 градусов Цельсия?

Answer 1

Ответ:

35%

Объяснение:

T1=466 K     T2=303 K     n=?

===

n=(T1-T2)/T1=(466-303)/466=0.35

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Answer 2

Calculation of the Efficiency of an Ideal Heat Engine

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

Efficiency = 1 - (Tc/Th)

Where: - Efficiency is the efficiency of the heat engine, - Tc is the temperature of the cold reservoir (in Kelvin), and - Th is the temperature of the hot reservoir (in Kelvin).

In this case, we are given the temperatures in degrees Celsius, so we need to convert them to Kelvin before applying the formula.

Given: - Temperature of the hot reservoir (nagrevatel) = 193 degrees Celsius - Temperature of the cold reservoir (holodilnik) = 30 degrees Celsius

To convert the temperatures from Celsius to Kelvin, we can use the formula:

T(K) = T(°C) + 273.15

Converting the temperatures:

- Temperature of the hot reservoir (Th) = 193 + 273.15 = 466.15 Kelvin - Temperature of the cold reservoir (Tc) = 30 + 273.15 = 303.15 Kelvin

Now, we can substitute the values into the efficiency formula:

Efficiency = 1 - (303.15/466.15)

Calculating the efficiency:

Efficiency = 1 - 0.650

Efficiency ≈ 0.350

Therefore, the efficiency of the ideal heat engine in this case is approximately 35%.

Please note that the search result snippet provided by You.com does not contain the necessary information to directly answer this question. The calculation is based on the general formula for the efficiency of an ideal heat engine.