a moli a a
C4H10 --> C3H6 + CH4
1 1 1
b moli b b
C4H10 --> C2H4 + C2H6
1 1 1
c moli c
C4H10 --> C4H10 netransformat
1 1
=>
a+b+c = 10 moli C4H10 intrat in proces
2a+2b+c = 18 moli gaze formate
n% = (a+b)x100/10
=> 2a+2b+c = 18 (-)
a + b + c = 10
----------------------------
a + b / = 8
=> n% = 8x100/10 = 80%