Предмет: Физика, автор: Аноним

Для підвищення температури повітря в кімнаті від 100С до 180С потрібно 1,4 мДж теплоти. Якою є маса повітря? (Питома теплоємність повітря кг С Дж 0 1000  ;

Ответы

Автор ответа: bondarenkoveronika75

0

Ответ:

формула: Q=cm(t2-t1)=cmΔt Δt=t2-t1

t1=10

t2=18

Q=1,4Мдж (переводим в систему СИ)=1,4*10^6 Дж

с=1,005кДж/(кг*К)(переводим в систему СИ)=1,005*10^3 Дж/(кг*К)

меняем формулу

m=Q/(c*Δt) подставь сам подсчитай

Объяснение:

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