# The equlibrium constant for    is 1.80 at  1000 *C .If 1 mole of H2 and 1 mole of Co2 are placed in one litre flask, the final equilibrium concentration of CO at 1000*C will be Option 1) 0.573 M Option 2) 0.385 M Option 3) 5.73 M Option 4) 0.295 M

As we learned in concept

Law of Chemical equilibrium -

At a given temperature, the product of concentration of the reaction products raised to the respective stoichiometric coefficient in the balanced chemical equation divided by the product of concentration of the reactants raised to their individual stoichiometric coefficients has a constant value.

- wherein

are equilibrium concentration

at t=0                              1                1                    0                    0

at equilibrium                 1-x             1- x                 x                    x

Option 1)

0.573 M

Option is correct

Option 2)

0.385 M

Option is incorrect

Option 3)

5.73 M

Option is incorrect

Option 4)

0.295 M

Option is incorrect

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