Предмет: Физика, автор: uninaelizaveta282

Количество теплоты, отданное в атмосферу тепловым двигателем за один цикл, равно 15 кДж. КПД двигателя 15%. Определите количество теплоты, полученное за цикл от нагревателя.

Ответы

Автор ответа: fatt52

Ответ:

17,65 кДж

Объяснение:

Qx=15 кДж η=0,15 (15%) Qн=?

===

η=(Qн-Qx)/Qн

Qн=Qx/(1-η)=15/(1-0.15)≈17.65 кДж

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