A mixture of ethane and ethene occupied 41 L at 1 atm and 500 K. The mixture reacts completely with
10
3
mol of O2
to produce CO2
and H2O. The number of moles of ethane in the mixture is
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Answer:
the mole fraction of ethane is 0.66 & ethene is 0.33 in the mixture.
Explanation:
formula of ethane = C2 H6 C2 H6
formula of ethene = C2 H4 C2 H4
total mole of (C2 H6 + C2 H4) = 1. 2195
PV = nRT
1 × 41 =n×0.082×500
n1+n2=1---------- 1( eq.)
C2 H6 + 7/2 C2 H6 __2 CO2+ 3 H2O
C2 H4 + 3O2__2CO2+2H2O
7/2n1+3n2= 10/3--------2(eq.)
on solving 1 and 2
n1=2/3and n2=1/3
n1=2/3
=0.67 (approx.)
n2=1/3
=0.33(approx.)
therefore, the mole fraction of ethane and ethene in the mixture is 0.67 and 0.33 respectively.
hope this helps!!!!!
thanks
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