Question

Onsider the chemical system: H2​(g)+I2​(g)------>2HI(g)

Answer 1

Answer:

The equation  $\frac{[HI]^{2} }{[H_{2}[I_{2} ] }$ represent

(1) law of mass action

(2) mass action expression

(3) equilibrium constant expression

Explanation:

At a given temperature, the rate of a reaction at a particular instant is proportional to the product of the active masses of the reactants at that instant raised to powers which are numerically equal to the numbers of their respective molecules in the stoichiometric equation describe  the reaction.