Предмет: Физика, автор: Dhfheudh

скільки теплоти потрібно щоб нагріти 200 грам срібла від 20 до 60 градусів

Ответы

Автор ответа: ildar502020

1

Ответ: 2000 Дж =2кДж.

Объяснение:

дано

m=200 г=0.2 кг

t1=20°C

t2=60°С

с(Ag) = 250 Дж/кг°С

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

Q=?

Решение

Q=cmΔt=250*0.2*(60°С-20°С)= 2000 Дж =2кДж.

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