Qu = mcΔt = 100·4184·30 = 12552Kj
Q consumat = 12552·100/80 = 15690kj
Q propan = 91250kj/m³ = 91250·22,4kj/kmol
Q butan = 118616kj/m³ = 118616·22,4kj/kmol
prin arderea amestecului de combustibil se obtine o cantitate de caldura :
Q = n·Qp + n·Qb = 15690kj
n = 15690/[22,4(91250 + 118616)] = 3,33 moli
m = 3.33(44 + 58) = 3,33·102 = 340,434g