Prediction of amount of products and reactants on the base of vale of equilibrium constant of the following reactions at constant temperature.
(a)`H_(2(g)) hArr 2HI_((g)) , K_c`=57.0
(b)`N_2O_(4(g)) hArr 2NO_(2(g)), K_c=4.64xx10^(-3)`
(c)`N_(2(g)) + O_(2(g)) hArr 2NO_((g)) , K_c=4.8xx10^(-31)`
(d) `H_(2(g)) + Cl_(2(g)) hArr 2HCl_((g)) , K_c=4.0xx10^31`

Explanation

Reaction (a) : The value of `K_c` is between `10^(-3)` to `10^3` [Products] `gt` [Reactants] because `K_c gt1`.
Reaction (b) : The value of `K_c` is between `10^(-3)` to `10^(+3)` So, [Products] `lt` [Reactant] because `K_c lt 1`.
Reaction (c): The value of `K_c` is very less. So, the amount of product at equilibrium is nigligible.
Reaction (d) : `K_c` is much high, So, only mainly products present at equilibrium.