Предмет: Физика, автор: yka25

В ідеальній тепловій машині за рахунок кожного кілоджоуля енергії, одержуваної від нагрівача, виконується робота 300 Дж. Визначити ККД машини і температуру нагрівача, якщо температура холодильника 280 К.

Ответы

Автор ответа: Carineitor

Ответ:

6,7%

Объяснение:

Qн= 300Дж

Qх = 280 Дж

η- ?

Розв'язання

η =(Qн-Qх)/Qн = (300Дж - 280Дж)/ 300 Дж = 6,7%

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