Предмет: Физика, автор: kutorkinegor

срочно 100 баллов
В топке котла паровой турбины расходуется 400 г дизельного топлива на 1 кВт ∙ ч энергии. Вычислите КПД турбины (в процентах). Ответ округлите до целого числа

Ответы

Автор ответа: 1Manka1

Ответ:

21%

Объяснение:

Дано:

m=400г=0,4кг

Р=1кВт=1000Вт

q=43*10⁶Дж/кг

t=3600c

======

n-?

n=A/Q=(Pt)/(qm)=(1000*3600)/(43*10⁶*0,4)=0,21=21%

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