What is the correct definition of dynamic equilibrium?

The forward reaction and backward reaction proceed at the same rate. The concentration of the reactants and products remains constant.

The forward reaction and backward reaction proceed at the same rate. The concentration of the reactants and products are the same.

The forward reaction and backward reaction proceed at an increased rate. The concentration of the reactants and products remains constant.

A 2.50 mol sample of NOCl was heated in a sealed container and equilibrium was established at a given temperature. The equilibrium mixture formed contained 0.80 mol of NO. What is the amount, in moles, of Cl2 and of NOCl in this equilibrium mixture? The equation is; 2NOCl(g) 2NO(g) + Cl2 (g)

Cl2 = 0.4 moles NOCl = 1.7 moles

Cl2 = 0.8 moles NOCl = 1.7 moles

Cl2 = 0.4 moles NOCl = 0.9 moles

Quiz

MrsSeymour 5 perguntas 5,0 (3 avaliações)

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1What is the correct definition of dynamic equilibrium?
1. AThe forward reaction and backward reaction proceed at the same rate. The concentration of the reactants and products are the same.
2. BThe forward reaction and backward reaction proceed at the same rate. The concentration of the reactants and products remains constant.
3. CThe forward reaction and backward reaction proceed at an increased rate. The concentration of the reactants and products remains constant.
2If the equilibrium expression is [A][B]2 / [C][D]3 (the number 2 and 3 are powers)... what would the equation be?
1. AA + 2B < > C + 3D
2. BA + 2B < > 3C + D
3. C2A + B < > 3C + D
3If the powers on the top row of an expression are 2 and 2 and on the bottom row are 1 and 3, what would the unit for Kc be?
1. Amoldm-3
2. Bmol-1dm3
3. CNo unit
4What is Kc?
1. ARate constant
2. BEquilibrium constant
3. CReversible reaction constant
5A 2.50 mol sample of NOCl was heated in a sealed container and equilibrium was established at a given temperature. The equilibrium mixture formed contained 0.80 mol of
NO. What is the amount, in moles, of Cl2 and of NOCl in this equilibrium mixture? The equation is; 2NOCl(g) 2NO(g) + Cl2 (g)
1. ACl2 = 0.4 moles
  NOCl = 1.7 moles
2. BCl2 = 0.8 moles
  NOCl = 1.7 moles
3. CCl2 = 0.4 moles
  NOCl = 0.9 moles