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consider the equilibrium reaction AB(g)=A(g)+B(g). At 400 k, Kc for the reaction is 1.5x10^-6. If 2...

consider the equilibrium reaction AB(g)=A(g)+B(g). At 400 k, Kc for the reaction is 1.5x10^-6. If 2 mol L^-1 are placed in a container at at 400 k the concentrations of A and B when equilibrium is reached will be...

a) less than 1.0x10^-4M

b) between 1.0x10^-4M and 1.0x10^-3M

c) between 1.0x10^-3M and 1.5x10^-3M

d) between 1.5x10^-3M and 2.5x10^-3M

e) greater than 2.5x10^-3M

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Answer #1

The reactants and products are in gaseous state, but given value 2 molL^-1 is in concentration unit and also Kc value is given. We need not worry to convert into Kp.

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