Question

100 балів. Газ здійснює цикл Карно і віддає холодильнику 67% теплоти, яку отримав від нагрівача. Визначити температуру холодильника, якщо температура нагрівача 430К.

Answer 1

Ответ: 288 К

Объяснение: Див. додаток

Answer 2

Ответ: 141,9К

Объяснение:

Дано:

Тн=430К

η=67%=0,67

-------------------

Тх-?

η=(Тн-Тх)/Тн

Тн-Тх=Тн*η

Тх=Тн-Тн*η=Тн*(1-η)=430*(1-0,67)=141,9К

Answer 3

Calculation of the Refrigerator Temperature in a Carnot Cycle

To determine the temperature of the refrigerator in a Carnot cycle, we can use the equation for the efficiency of a Carnot cycle:

Efficiency = 1 - (Tc/Th)

Where: - Efficiency is the ratio of the work output to the heat input. - Tc is the temperature of the cold reservoir (refrigerator). - Th is the temperature of the hot reservoir (heater).

In this case, the efficiency is given as 67%, which can be expressed as 0.67. We are given the temperature of the heater (nagrivach) as 430K. We need to find the temperature of the refrigerator (holodilnik).

Let's solve for Tc:

0.67 = 1 - (Tc/430K)

Rearranging the equation:

Tc/430K = 1 - 0.67

Tc/430K = 0.33

Tc = 0.33 * 430K

Tc ≈ 141.9K

Therefore, the temperature of the refrigerator (holodilnik) is approximately 141.9K.