1) Cele 3 reactii: hidroliza carbidului, arderea acetilenei si trecerea azotului in azot (pe care nu e necesar s-o scriem)
64kg.............................22,4m³
CaC2 + H2O -> CaO + C2H2
x=?...............................448m³
22,4....2,5*22,4
C2H2 + 2,5O2 -> 2CO2 + H2O
448........y=?
x=448*64/22,4=1280kg carbid
y=448*2,5=1120m³ O2
Vaer=5VO2=5*1120=5600m³ aer necesari arderii
2)
22,4m³..2kg....28kg
C2H2 + H2 -> C2H4
x=?........y=?...140kg
x=140*22,4/28=112m³ C2H2
y=140*2/28=10kg H2
polimerizarea etenei, duce la polietena din care sunt confectionate fibrele sintetice, ca panza de sac.
500g*n=140000g
n=280 saci
1sac................0,5m
280saci..............zm z=280*0,5=140m
