Предмет: Физика, автор: anutabelze

Какую массу воды можно нагреть от 20 С до температуры кипения на лампе, в которой сгорает 200 г керосина, а её коэффициент полезного действия равен 12%?
тема:тепловой двигатель
решение с формулами.без объяснения.

Ответы

Автор ответа: Lebron23

0

Количесто теплоты, которое идет на нагрев:

Q=c*mв*(t2-t1)

Удельная теплота сгорания:

Q= КПД*q*mк

Прировняем

c*mв*дельтае=КПД*q*mк

отсюда

мв=(кпд*q*mk)/(c*t)

мв=3,29 кг

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