Vs = 50 L = 50000 cm3 , ro = p = 1,04 g/cm3
=> p = ms/Vs => ms = pxVs = 1,04*50000
= 52000 g = 52 kg sol.
c% = 28% , stim ca c% = mdx100/ms
=> md = msxc/100 = 52x28/100
= 14,56 kg alcool din vin
14,56 kg n kmoli
C6H12O6 --fermentatie--> 2CH3CH2OH + 2CO2
2x46 2
=> n = 14,56x2/2x46 = 0,317 kmoli CO2 in c.n.
stim ca PV = nRT
=> V = nRT/P = 0,317x0,082x(273+27)/2,5
= 3,11 m3 CO2