Предмет: Физика, автор: saneck67370

для нагревания кирпича массой 4 кг от 15 градусов C до 30 градусов C израсходовано 48 кДж теплоты . Найти удельную теплоемкость кирпича. как решить эту задачу?

Ответы

Автор ответа: rigenoir79

Дано:
m=4кг
t1=15°C
t2=30°C
Q=48кДж=48000Дж

c-?
Решение:
Q=cm(t2-t1)
c=Q/m(t2-t1)
c=48000/4*(30-15)=48000/60=800Дж/кг * °С
Ответ: 800 Дж/кг * °C

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