ConstantsPerioic Table Part A Consider the reaction What wil

ConstantsPerioic Table- Part A Consider the reaction What will be the equilibrium concentration of CO? Express the concentration in molarity to two significant figures. CO(g) + H2O(g) CO2(g) + H2 (g) Ke 102 at 500 K A reaction mixture initially contains 0.135 M CO and 0.135 M H2O You may want to reference (Pages 656 -664) Section 15.8 while completing this problem [Col- co] Submit X Incorrect, One attempt remaining: Try Again Part B This question will be shown after you complete previous question(s) Part C This question will be shown after you complete previous question(s). Part D This question will be shown after you complete previous question(s)

Solution

          CO(g)   + H2O(g) ----------- CO2(g)   + H2(g)              Kc= 102

    0.135           0.135                    0               0

    -x                  -x                       +x               +x

0.135-x           0.135-x                  +x                +x

Kc= [CO2][H2]/[CO][H2O]

102 = x*x/(0.135-x)(0.135-x)

102 = [ (x/(0.135-x)]^2

x/0.135-x = 10.1

x= 0.123

at equilibrium

concentration of CO = 0.135-x= 0.135 - 0.123 = 0.012M

[CO]= 0.012M