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Topic 9 – Kinetics and Equilibrium
3. Reaction Rate: Determining factors that will change chemical reaction rate of reactions
1. Given the reaction,
A2(g) + B2(g) ------------------ 2AB(g) + heat
An increase in concentration of A2(g) increases the rate of the reaction because of
1) A decrease in activation energy 3) A decrease in frequency of collision
4) An Increase in frequency of collision
2) An increase in activation energy
2. Given the reaction
A(s) + B(s) --------------------- C(aq) + D(aq)
Which change would increase the rate of this reaction?
Teacher Preview Copy
1) A decrease in temperature 3) A decrease in pressure
2) An increase in temperature
4) An increase in pressure
3. Given the reaction
Mg(s) + HNO3(aq) -------- Mg(NO3)2(aq) + H2(g)
At which temperature will the reaction occurs at the greatest rate?
o
o
1) 10 C 3) 50 C
o
o
2) 30 C 4) 70 C
4. At which temperature would a reaction between zinc and hydrochloric acid occur at the slowest
speed? o
o
1) 25 C
3) 75 C
2) 1 gram of Al ribbon Teacher Preview Copy
o
o
2) 50 C 4) 100 C
5. Given the reaction
Zn(s) + HCl (aq) ----------- ZnCl2(aq) + H2(g)
The reaction will occur more rapidly when a 10 gram sample of zinc powder is used rather than
1 piece of zinc because zinc powder
1) Has more surface area 3) Lower potential energy
2) Has less surface area
4) Higher potential energy
6. Four aluminum samples are each reacted with separate 1 M copper sulfate solution under the same
conditions of temperature and pressure. Which aluminum sample would react most rapidly?
1) 1 gram of Al block 3) 1 gram of Al Powder
4) 1 gram of Al pellet
7. Given the reaction
2+
2-
CuSO4(s) ============ Cu (aq) + SO4 (aq)
The CuSO4(s) dissolves more rapidly when it is powdered because the increased in surface area
allows for
1) Increased exposure of solute to solvent
2) Increased solute solubility
3) Decreased exposure of solute to solvent
4) Decreased solute solubility
Copyright©2010 E3 Scholastic Publishing. All Rights Reserved. SurvivingChem.com 267
Topic 9 – Kinetics and Equilibrium
3. Reaction Rate: Determining factors that will change chemical reaction rate of reactions
1. Given the reaction,
A2(g) + B2(g) ------------------ 2AB(g) + heat
An increase in concentration of A2(g) increases the rate of the reaction because of
1) A decrease in activation energy 3) A decrease in frequency of collision
4) An Increase in frequency of collision
2) An increase in activation energy
2. Given the reaction
A(s) + B(s) --------------------- C(aq) + D(aq)
Which change would increase the rate of this reaction?
Teacher Preview Copy
1) A decrease in temperature 3) A decrease in pressure
2) An increase in temperature
4) An increase in pressure
3. Given the reaction
Mg(s) + HNO3(aq) -------- Mg(NO3)2(aq) + H2(g)
At which temperature will the reaction occurs at the greatest rate?
o
o
1) 10 C 3) 50 C
o
o
2) 30 C 4) 70 C
4. At which temperature would a reaction between zinc and hydrochloric acid occur at the slowest
speed? o
o
1) 25 C
3) 75 C
2) 1 gram of Al ribbon Teacher Preview Copy
o
o
2) 50 C 4) 100 C
5. Given the reaction
Zn(s) + HCl (aq) ----------- ZnCl2(aq) + H2(g)
The reaction will occur more rapidly when a 10 gram sample of zinc powder is used rather than
1 piece of zinc because zinc powder
1) Has more surface area 3) Lower potential energy
2) Has less surface area
4) Higher potential energy
6. Four aluminum samples are each reacted with separate 1 M copper sulfate solution under the same
conditions of temperature and pressure. Which aluminum sample would react most rapidly?
1) 1 gram of Al block 3) 1 gram of Al Powder
4) 1 gram of Al pellet
7. Given the reaction
2+
2-
CuSO4(s) ============ Cu (aq) + SO4 (aq)
The CuSO4(s) dissolves more rapidly when it is powdered because the increased in surface area
allows for
1) Increased exposure of solute to solvent
2) Increased solute solubility
3) Decreased exposure of solute to solvent
4) Decreased solute solubility
Copyright©2010 E3 Scholastic Publishing. All Rights Reserved. SurvivingChem.com 267
