p1=2*10^5 Па V1=10^-2 м3 Q=?
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Q-Q12+Q23
Q12=(3/2)*v*R*ΔT1 (V - const)
p1/T1=2*p1/(T1+ΔT1)
ΔT1=T1
p1*V1=v*R*T1
Q12=(3/2)*p1*V1
T2=2*T1
Q23=(3/2)*v*R*ΔT2+p2*ΔV (p - const)
V1/T2=3*V1/(T2+ΔT2)
ΔT2=2*T2=4*T1
Q23=(3/2)*4*p1*V1 + 2*p1*2*V1=10*p1*V1=10*2*10^5*10^-2=20*10^3 Дж (20 кДж)
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Verified answer
p1=2*10^5 Па V1=10^-2 м3 Q=?
===
Q-Q12+Q23
Q12=(3/2)*v*R*ΔT1 (V - const)
p1/T1=2*p1/(T1+ΔT1)
ΔT1=T1
p1*V1=v*R*T1
Q12=(3/2)*p1*V1
T2=2*T1
Q23=(3/2)*v*R*ΔT2+p2*ΔV (p - const)
V1/T2=3*V1/(T2+ΔT2)
ΔT2=2*T2=4*T1
Q23=(3/2)*4*p1*V1 + 2*p1*2*V1=10*p1*V1=10*2*10^5*10^-2=20*10^3 Дж (20 кДж)
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