At 400 k, the equilibrium constant for the reaction is kc = 7.0. br2 (g) + cl2 (g) 2brcl (g) a closed vessel at 400 k is charged
with 1.00 m of br2 (g), 1.00 m of cl2 (g), and 3.00 m of brcl (g). a.write the equilibrium expression for this reaction.
b.find q and determine if the reaction shifts to the left or right.
c.draw an ice chart for the reaction.
a) when Kc = concentration of products / concentration of reactants So according to the reaction equation: Br2(g) + Cl2(g) → 2BrCl(g)
∴ Kc =[BrCl] ^2 / [Br2][Cl2]
b) when q = [BrCl]^2 / [Br2][Cl2] and we have [BrCl] = 3 m [Br2] = 1 m [Cl2] = 1 m So by substitution: q= 3^2 / 1*1 = 9
- and we can see that q > Kc the reaction is not at equilibrium that means there are more products and the reaction shifts to the left to increase the reactants and decrease the products to achieve equilibrium.
when Kc = [Brcl]^2/[Cl2][Br2] by substitution: 7 = (3+X)^2 / (1+X) (1+X) by solving this equation for X ∴X = 0.215 so at equilibrium: ∴ [Br2] = [Cl2] = 1-0.215 = 0.785 m [BrCl] = 3+0.215 = 3.215 m
In your choices, the best answer is the mass of the reactants and the mass of the products are no equal. The chemical equilibrium can take place in a close system and can not be affected by catalyst and is a reversible reaction. The best describe should be the concentration of reactants and products are constant.
Your answer is C amino acids are created by a bond of two carbon atoms and each carbon is part of a different group, one negative and one positive. when the chemical reactions occurs, it creates the several diff amino acids
