Q. 124.1( 28 Votes )

A mixture of 1.57

Answer :

Concentration of substance,

[substance] =


Thus, concentrations of given substances are,


[N2] = 1.57/20 mol L-1


[H2] = 1.92/20 mol L-1


[NH3] = 8.13/20 mol L-1


For a chemical change,


aA + bB cC + dD


Reaction quotient Qc for the reaction is,


Qc =


Where [substance] is concentration of substance at a particular time.


For given reaction


N2 (g) + 3H2 (g)2NH3 (g)


Reaction quotient is,


Qc = =


Qc >Kc . Therefore, the reaction proceeds in reverse direction in order to attain equilibrium. (Equilibrium constant is reaction coefficient at equilibrium state)


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