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1. a) Write the equilibrium constant expression, for the reaction: H2 (g)+ 2 HI (g) 12 (g) 5.0 x10 M; b) What is the equilibr

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Answer #1

a)
Kc is defined as concentration of product by concentration of reactant with each concentration term raised to power that is equal to its stoichiometric coefficient in balanced equation

So,
Kc = [HI]^2 / [H2][I2]

b)
Kc = [HI]^2 / [H2][I2]
= (5.0*10^-1)^2 / (6.9*10^-2)*(6.9*10^-2)
= (5.0*10^-1)^2 / (6.9*10^-2)^2
= 52.5
Answer: 5.3*10^1

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