Предмет: Физика, автор: Аноним

ПОМОГИТЕ ПЖЛСТ
Какое количество теплоты выделится при сгорании 1 т каменного угля? (удельная теплота сгорания каменного угля равна 30 МДж/кг)

Ответы

Автор ответа: DedStar
56

Ответ:

Объяснение:

Дано:

m = 1 т = 1000 кг = 1·10³ кг

q = 30 МДж/кг = 30·10⁶ Дж/кг

______________

Q - ?

Q = m·q

Q = 1·10³·30·10⁶ = 30·10⁹ Дж   или  30 ГДж

marmokm282: благодарю, мертвая звезда.
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