Question

se considera schema de reactii:

2CH4-->a+3H2
a+H2O-->[b] <--> c
CH4+O2-->(400-600 grade C, oxizi de azot) d+H2O
d+c-->e--->f+H2O

b) calculati masa de compus f care se poate obtine din 201,6 L (c.n.) de metan,considerand reactiile totale.

Raspuns:168g

Answer 1

a: C2H2
b: CH2=CHOH (INSTABIL)
c: CH2-CH=O (etanal)
d: CH2=O
e: CH2(OH)CH2-CH=O
f: CH2=CH-CH=O
nCH4=9 moli
x moli CH4 se transforma in etanal
9-x moli CH4 se transforma in metanal
cf reactiilor se obtin : x/2 moli etanal si 9-x moli metanal
cf ecuatiei de obtinere a propenalului, x/2=9-x -> x=6
m f=3*56=168