Предмет: Физика, автор: mangurenko

Яка кількість теплоти необхідна, щоб росплавити 500г міді, узятої за температури плавлення?


mangurenko: скорее пж
MrFarMauT: ну я первее
MrFarMauT: :(
MrFarMauT: спасибо большое
MrFarMauT: дякую
mangurenko: )))

Ответы

Автор ответа: MrFarMauT
2

Ответ:

Всё просто вычисляем по формуле/(Все просто, обчислюємо за формулою):

Q=Qпл=А(знак лямды) * m

Q=210000Дж/кг*0,5кг=105000Дж= 105 кДж

Ответ: Q=105 кДж


mangurenko: спасибі
Автор ответа: Chara09
2

Ответ:

426 кДж

Объяснение:

Маємо простий розв'язок за формулою: Q = λm , підставляємо значення, та маємо: Q = λm = 213000 Дж/кг * 0.5 кг = 106500 Дж = 106,5 кДж


Chara09: розв'язок з помилкою найкращий, геніально
mangurenko: я тобі поставив кращу у іншій
mangurenko: подивись
mangurenko: ти там теж відпвіла
mangurenko: алоо
mangurenko: ти тут?
Chara09: я побачила
mangurenko: не лайтесь(((
mangurenko: нікого не обділив)))
mangurenko: можешь будь ласка скинути силку на цю таблицю
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