The reaction given
CO(g) + H2O(g) --------> CO2(g) + H2(g)
Kc= 5.1
it is given that initially 0.0954 M of each of them is present
CO(g) + H2O(g) --------> CO2(g) + H2(g)
0.0954 0.0954 0.0954 0.0954
0.0954-x 0.0954-x 0.0954+x 0.094+x
Kc expression will be
5.1 [0.0954-1]*[0.0954-x] = [0.0954+x] * [0.0954+x]
5.1 (0.0954-x)2 = (0.0954+x)2
5.1 ( 0.09542 - 2 * 0.0954*x + x2 ) = ( 0.09542 + 2 * 0.0954*x + x2 )
5.1* 0.09542 -5.1* 2 * 0.0954*x+ 5.1x2 = 0.09542 + 2 * 0.0954*x + x2
0.046416 - 0.97308*x + 5.1 x2 = 9.10116*10-3 +0.1908*x+x2
( 5.1-1)x2 -( 0.97308+0.1908)*x +0.046416-9.10116*10-3 =0
4.1 x2 -1.16388x+0.03731484 = 0
on solving the above quadratic equation , x= 0.24703, 0.0368423
Since the initial concentration was 0.0950 , 0.247 cannot be root as that would been negative molar concentration of reactant at equilibrium which is not possible
Hence , x =0.0368423 M
Hence
PART (1)
[CO(g) ]= 0.0950-x=0.0950-0.0368423 = 0.0581577 M
PART (2)
[CO2(g) ]= 0.0950+x= 0.0950+0.0368423 = 0.1318423 M
PART (3)
[H2O(g)] =0.0950 -x = 0.0950-0.0368423 =0.0581577 M
PART (4)
[H2(g) ]=0.0950+x = 0.0950+0.0368423 = 0.1318423 M
The water-gas shift reaction is an important source of hydrogen. The value of Kc for the...
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Be sure to answer all parts. Kc for the reaction of hydrogen and iodine to produce hydrogen iodide. H2(g) + I2(g) ⇌ 2HI(g) is 54.3 at 430°C. Calculate the equilibrium concentrations of H2, I2, and HI at 430°C if the initial concentrations are [H2] = [I2] = 0 M, and [HI] = 0.349 M. [H2] = M [I2] = M [HI] = M
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