When each of the following processes reach equilibrium, does the system in question contain mostly reactants, mostly products, o

Question

4 years ago

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When each of the following processes reach equilibrium, does the system in question contain mostly reactants, mostly products, o

r fairly equal concentrations of both reactants and products? Justify your answers.
a. 2 H2(g) +02(g)2 H20(g)
b. H2(g + Br2(g)2HBr(g) K. 91 x 1080 at 25°C K-114 x 1021 at 25°C

Chemistry

1 answer:

jasenka [17] · Answer 1 · 2022-02-16T09:21:21+03:00

Answer:

Mostly products

Explanation:

Given the very large equilibrium constants for the two reactions we can consider them to be essentially 100 % complete to the product side.

The equilibrium constant for the reactions are given by:

a. K = p H₂O ² / (p H₂ ² x p O₂ ) where p are the pressures K = 91 x 10⁸⁰

b. K = p HBr ² / ( p H₂ x p Br₂ ) K = 114 x 10²¹

These two number are so big that essentially very, very little amount of reactants are present after reaction.