Предмет: Физика, автор: 89080599305z

Какое количество теплоты потребуется для нагревания серебряной монеты массой 1г от 20 до 40 C

Ответы

Автор ответа: ildar502020
1

Ответ:   5 Дж.

Объяснение:

Дано

m=1 г = 1/1000 кг

t1=20°C

t2=40°C

c(Aq)=250Дж/кг*°С

-------------

Q=?

Решение

Q=cmΔt=250*0.001*(40-20)=5 Дж.

Автор ответа: sakura9665
0

Ответ:

=250дж

Объяснение:

Дано m (масса взятой серебряной ложки)100 г (0,1 кг); t0 (температура ложки до нагрева) = 20 ºС; t (конечная температура) = 80 ºС. Са (удельная теплоемкость серебра) =250 Дж/(кг*ºС). Найти Q ... Ответ: Для нагревания взятой ложки необходимо 1500Дж теплоты. ответил 05 Окт от sweto. Похожие вопросы. 1 ответ.

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