3035383
Description
Quiz by MrsSeymour, updated more than 1 year ago
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Created by MrsSeymour
over 10 years ago
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Question 1
Question
What is the correct definition of dynamic equilibrium?
Answer
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The forward reaction and backward reaction proceed at the same rate. The concentration of the reactants and products are the same.
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The forward reaction and backward reaction proceed at the same rate. The concentration of the reactants and products remains constant.
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The forward reaction and backward reaction proceed at an increased rate. The concentration of the reactants and products remains constant.
Question 2
Question
If the equilibrium expression is [A][B]2 / [C][D]3 (the number 2 and 3 are powers)... what would the equation be?
Answer
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A + 2B < > C + 3D
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A + 2B < > 3C + D
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2A + B < > 3C + D
Question 3
Question
If 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?
Answer
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moldm-3
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mol-1dm3
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No unit
Question 4
Question
What is Kc?
Answer
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Rate constant
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Equilibrium constant
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Reversible reaction constant
Question 5
Question
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)
Answer
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Cl2 = 0.4 moles NOCl = 1.7 moles
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Cl2 = 0.8 moles NOCl = 1.7 moles
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Cl2 = 0.4 moles NOCl = 0.9 moles
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