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fatt52

Ответ:

Q=2.5*10^6 Дж

Объяснение:

V1=5 м³    p1=10^5 Па   p2=3*10^5 Па   i=5    Q=?

===

V=const

T1=p1*V1/(v*R)

T2=p2*V1/(v*R)

ΔT=T2-T1=V1*(p2-p1)/(v*R)

Q=U2-U1=(i/2)*v*R*ΔT=(5/2)*V1*(p2-p1)=5*5*(3-1)*10^5/2=2.5*10^6 Дж

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