Obliczyć entalpię reakcji: 2Cu(s) + O2(g) → 2CuO(s)
mając następujące dane: CuO(s) + C(s) → Cu(s) + CO(g) ΔH = 44kJ
C(s) + 1/2O2(g) → CO(g) H = -111kJ
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
ΔH1= 44kJ
ΔH2= -111kJ
ΔHx= ?
*(-2)/ CuO(s) + C(s) → Cu(s) + CO(g) /ΔH1
*2/ C(s) + 1/2O2(g) → CO(g) /ΔH2
___________________________
2Cu(s) + O2(g) → 2CuO(s) /ΔHx
ΔHx= 2*ΔH2 + (-2)*ΔH1
ΔHx= 2*(-111)+ (-2)*(44)
ΔHx= -222-88
ΔHx= -310kJ