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Unit 2: Equilibrium
Terms in this set (18)
Does the concentration of reactants always equal the concentration of products?
When a reaction is at equilibrium, the forward reverse rates of the reaction are...
Which side is favoured -the side with minimum enthalpy or maximum enthalpy?
True or False: The side with maximum entropy is favoured.
The states of matter from most random to least random are...
Gas, aq, liquid, solid
If heat is added to an endothermic reaction at equilibrium, which side does the reaction shift to?
The Product side
Write the equilibrium expression for 2NO + O(subscript2) <-> 2NOCl.
Keq = [NOCl]^2/([NO]^2[O(subscript2)])
When are liquids included in the Keq expression?
When more than one liquid is present.
True or False: The concentration of the solid state of a certain element does not change.
Are solids included in the equilibrium expression?
True or False: Temperature is the only stressor that affects Keq.
What is the definition of Keq?
Keq = [Products]/[Reactants]
What is one type of table that can be used to determine equilibrium problems?
24 mols of HCl is added to an empty 1L flask. What is the concentration of HCl in the flask?
When the value of a test Keq is less than the value of the known Keq for a given reaction, which way will the reaction shift in order to reach equilibrium?
To the product side.
BONUS QUESTION 1: Equilibrium is possible when (a) minimum enthalpy and maximum entropy both favour the same side or when (b) minimum enthalpy and maximum entropy favour different sides.
BONUS QUESTION 2: When Keq > 1 there is (a) a higher concentration of products compared to reactants or (b) a higher concentration of reactants compared to products.
BONUS QUESTION 3: What happens to the concentration of a gas when the volume of its container is decreased?
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Chem 12 unit 2
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