Предмет: Физика, автор: ан123321

30б!!!!!!!!!!!!!!!!!!!!!
В печи сгорели древесные чурки массой 1,6 т и каменный уголь марки А-I массой 0,4 т. Определи количество теплоты, которая выделилась в печи. Удельная теплота сгорания древесных чурок — 15 МДж/кг, каменного угля марки А-I — 20,5 МДж/кг.

Ответы

Автор ответа: apajper

1,6т=1600кг

1600*15=24000МДж

0,4т=400кг

400*20,5=8200МДж

всего 24000+8200=32200МДж

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