Предмет: Физика, автор: alina22071

РЕШИТЕ ПОЖАЛУЙСТА,ОЧЕНЬ НУЖНО
Какое количество теплоты необходимо для плавления 100 кг железа, взятого при температуре плавления.

Ответы

Автор ответа: vitalikaleshinp8m4mq
5
Q = λm = 272  кДж/кг * 100 кг =  27200  кДж =27,2 МДж
Автор ответа: AlinaVorobey070
5
Дано:
m = 100 кг
λ = 270.000 Дж/кг
Найти:
Q - ?

Решение:
Q = λm = 270.000×100 = 27.000.000 Дж = 27 МДж
Ответ: 27 МДж.
alina22071: Спасибо огромное)
AlinaVorobey070: Пожалуйста)
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