Предмет: Физика, автор: quarkofficial

1. В сосуде под давлением 20 кПа находится 1 кг одноатомного идеального газа плотностью 3 кг/ м кубический. Чему равна в кДж энергия теплового движения молекул этого газа?

Ответы

Автор ответа: fatt52

Ответ:

10 кДж

Объяснение:

p=20*10^3 Па m=1 кг po=3 кг/м³ U=?

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U=(3/2)*p*V=3*p*m/(2*po)=3*20*10^3/(2*3)=10^4 Дж

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