a) C + O2 -to-> CO2
b) nC=18/12=1.5mol
C + O2 -to-> CO2
(mol) 1.5 1.5 1.5
VCO2=1.5*22.4=33.6 (l)
c) VO2=1.5*22.4=33.6(l)
Vkk = VO2*5=33.6*5=168(l)
a) PTHH: C + O2 \(-^{t^o}-\)➤ CO2
b) \(n_C=\dfrac{18}{12}=1,5\left(mol\right)\)
Theo PT: \(n_{CO_2}=n_C=1,5\left(mol\right)\)
⇒ \(V_{CO_2}=1,5.22,4=33,6\left(l\right)\)
c) Theo PT: \(n_{O_2}=n_C=1,5\left(mol\right)\)
⇒ \(V_{O_2}=1,5.22,4=33,6\left(l\right)\)
Do O2 chiếm \(\dfrac{1}{5}\) thể tích không khí
⇒ \(V_{KK}=5V_{O_2}=5.33,6=168\left(l\right)\)