Предмет: Физика, автор: shymechkoostap

скільки теплоти в дж виділяється при кристалізації 3 кг розплавленого алюмінію. питома теплота плавлення алюмінію 3,9*10 в 5 степені дж/кг
з дано і розв‘язанням

Ответы

Автор ответа: liriodevalles

4

Дано:
m=3кг
λ =390 000 Дж/кг
Знайти:
Q-?
Розв‘язання:
Q= λ•m
Q= 390 000•3= 1 170 000(Дж) =1,17 МДж

shymechkoostap: дякуюю!!! дуже допомогли

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