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inysia [295]
3 years ago
14

Consider the following reversible reaction. 2H2O(g)<—>2H2(g)+O2(g) What is the equilibrium constant expression for the giv

en system?
Chemistry
2 answers:
masha68 [24]3 years ago
7 0

The reaction: 2H2(g) + O2(g) → 2H2O(g), can be interpreted as: a. 2 moles of hydrogen gas reacts with 1 mole of oxygen gas to produce 2 moles of water.

docker41 [41]3 years ago
3 0

Answer : The equilibrium constant expression will be,

k_{eq}=\frac{[H_2]^2[O_2]}{[H_2O]^2}  

Explanation :

The given balanced chemical reaction is,

2H_2O(g)\rightleftharpoons 2H_2(g)+O_2(g)

The equilibrium expression for the reaction is determined by multiplying the concentrations of products and divided by the concentrations of the reactants and each concentration is raised to the power that is equal to the coefficient in the balanced reaction.  

The concentrations of pure solids are constant that is they do not change. Thus, they are not included in the equilibrium expression.

So, the equilibrium constant expression will be,

k_{eq}=\frac{[H_2]^2[O_2]}{[H_2O]^2}

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