Review Kinetics and Equilibrium Test

Which will occur if a catalyst is added to a rxn mixture? 1. Only the rate of the reverse reaction will increase 2. Only the rate of the forward reaction will increase 3. The energy change of the rxn (ΔH) will be decreased 4. The activation energy will be changed

Draw a PE vs. Rxn mechanism graph that shows an exothermic reaction

Label the: PE reactants PE reactants PE products PE products Activated complex Activated complex ΔH ΔH

According to Reference Table I the greatest amount of energy would be given up by the complete oxidation of 1 mole of: 1. C 6 H 12 O 6 (s) 2. C 3 H 8 (g) 3. CH 3 OH (l) 4. CH 4 (g)

In a chemical rxn, the difference b/t the PE of the products and the PE of the reactants is called what? ΔHΔH

Given the below rxn, which choice will cause less CH 3 COO - 1. Na + 2. H 3 O + 3. OH - 4. Cl - CH 3 COOH + H 2 O  H 3 O + + CH 3 COO -

Which equilibrium constant indicates an equilibrium mixture that favors the formation of products? 1. K eq = 1 x K eq = 1 x K eq = 1 x K eq = 1 x 10 0

What is the equilibrium expression for the rxn: 4Al (s) + 3O 2 (g)  2Al 2 O 3 (s)

What is the correct equilibrium expression for: 2CO (g) + O 2 (g)  2CO 2

The heat of reaction is defined as what? Heat content of products – Heat content of reactants

At temperatures above 0 o C which phase change occurs? 1. H 2 O(s)  H 2 O(l), endothermic and spontaneous 2. H 2 O(s)  H 2 O(l), exothermic and spontaneous 3. H 2 O(l)  H 2 O(s), endothermic and spontaneous 4. H 2 O(l)  H 2 O(s), exothermic and spontaneous

A 1-g sample of a substance has the greatest entropy when it is in the : 1. Crystalline state 2. Liquid state 3. Gaseous state 4. Solid state

The molecules of which substance have the highest average kinetic energy? A.CO 2 (g) at 20 o B. HCl (g) at 40 o C.N 2(g) at 60 o D.He (g) at 0 o

If the forward activation of the rxn below is 20 kcal, what is the activation of the reverse reaction? A (g) + B (g)  C (g) +D (g) + 30 kcal

In a gaseous system, Temp remaining constant, an increase in pressure will 1. Increase the activation energy 2. Decrease the activation energy 3. Decrease the reaction rate 4. Increase the reaction rate

As the surface area of the Zinc used in the reaction increases, the rate of reaction will... Zn (s) + 2HCl (aq)  ZnCl 2(aq) + H 2(g)

At 10 o C, 23-g of a substance saturates 100-g of water. What is the substance?

What is the maximum number of grams of NH 4 Cl that will dissolve in 200-g of water at 70 o C

What is the solubility product constant expression (K sp ) for the reaction below Ag 2 S (s) = 2Ag + (aq) + S -2 (aq)

You now can review at home If you know the special tricks If you know the special tricks If you have the druthers If you have the druthers