Предмет: Физика, автор: lizka011

Какое количество теплоты потребуется
Для нагрева 250 г серебра на 20градусов?

Ответы

Автор ответа: ИЛИЯяя

0

Дано:
m=250 г = 0, 25 кг
c = 4200 Дж/кг*С
изменение t = 20 C
Q-?
Решение:
Q = m*c*изменение температуры
Q = 0,25*4200*20=21000 Дж или 21КДж

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