υ=2 kmoli=2*10³ moli
R=8,31*10³ J/kmol*K=8,31 J/mol*K
gaz monoatomic=>γ=1,66
γ=1+R/Cv<=>1.66-1=8,31/Cv<=>0,66=8,31/Cv=>Cv=8,31/0,66=3R/2
Cp=Cv+R=3R/2+R=5R/2
T₂=T₁-T'
ΔT=T₁-T₂=T₁-T₁+T'=T'=50 K
L=υRΔT=2000*8,31*50=831000 J=831 kJ
ΔU=υCvΔT=2000*3R/2*50=12,465*100000=1246500 J=1246,5 kJ
Q=υCpΔT=2000*5R/2*50=20,775*100000=2077500 J=2077,5 kJ
