помогите , пожалуйста!!!!!!!!4.Определите количество теплоты, полученное 5 моль одноатомного идеального газа при повышении его температуры на 200 К.5.Температура газов в двигателе автомобиля 800 0С, а выхлопных газов 800С. Определите КПД и совершенную работу, если полученное количество теплоты составляет 20 МДж.

помогите , пожалуйста!!!!!!!!

4.Определите количество теплоты, полученное 5 моль одноатомного идеального газа при повышении его температуры на 200 К.

5.Температура газов в двигателе автомобиля 800 0С, а выхлопных газов 800С. Определите КПД и совершенную работу, если полученное количество теплоты составляет 20 МДж.
- Предмет:
  Физика
- Автор:
  calliegsup
- 6 лет назад

Ответы 1

4) V=constΔU=Q=(3/2)*v*R*ΔT=3*5*8.31*200/2=12465 Дж===========5) n=(T1-T2)/T1=(1073-353)/1073=0.67 (67%)A=n*Q=0.67*20*10^6=13.4*10^6 Дж (13,4 МДж)=====================================
- Автор:
  bambiwet9
- 6 лет назад
- 0
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