Предмет: Физика, автор: saha2910

Какое количество теплоты выделится при отвердева нии 2 т расплавленного алюминия, взятого при температуре плавления и остывшего до температуры 60°С? Изобразите этот процесс на графике зависимости температуры алюминия от времени

Ответы

Автор ответа: asil0600

tпл=660 градусов С
Са=920 Дж/кг* градус
Q=Ca*m*(tgk-60)=920*2000*(660-60)=1104[МДж]

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