Предмет: Физика, автор: dddd85dddd85dddd85

ДАЮ ВСЕ БАЛЛЫ НО ТОЛЬКО С РЕШЕНИЕМ
На сколько нагреется 10л воды, если получит всю энергию от сгорания 50г нефти? (Ответ выразите в ⁰С и округлите до целых) Удельная теплоемкость воды 4200Дж/(кг*⁰С), удельная теплота сгорания нефти 44МДж/кг. С РЕШЕНИЕМ ПОМЕЧУ КАК ЛУЧШИЙ

Ответы

Автор ответа: ilyasid83

ΔОтвет:

52 градуса

Объяснение:

Формула удельной теплоемкости:

$c=\frac{Q}{mt}$ . Выражаем Qнефти

Qнефти = 44000000*0.05=2200000

Выражаем tводы:

$t=\frac{Q}{cm}$

t=2200000/(4200*10)=52.38 градуса.

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