Rates of Change in Chemical Reactions
Authored by Pakkapon Chaowasakoo
Chemistry
11th Grade
Used 21+ times
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5 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
For the reaction A+ 3B --> 2C, how does the rate of disappearance of B compare to the rate of production of C?
the rate of disappearance of B is 1/2 the rate of appearance of C
the rate of disappearance of B is 3/2 the rate of appearance of C
the rate of disappearance of B is 2/3 the rate of appearance of C
the rate of disappearance of B is 1/3 the rate of appearance of C
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
For the reaction 2A + 3B → 4C + 5D, the rate of the reaction in terms of ΔA would be written as:
–ΔA/Δt
–1/2 ΔA/Δt
+ΔA/Δt
+1/2 ΔA/Δt
–2 ΔA/Δt
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
For the reaction 2A + 3B → 4C + 5D, the rate of the reaction in terms of ΔB would be written as
–ΔB/Δt
+ΔB/Δt
–1/3 ΔB/Δt
+1/3 ΔB/Δt
–3 ΔB/Δt
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
For the reaction 2A + 3B → 4C + 5D, the rate of the reaction in terms of ΔC would be written as
+ΔC/Δt
+4 ΔC/Δt
+1/4 ΔC/Δt
–4 ΔC/Δt
–1/4 ΔC/Δt
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In the combustion of methane, CH4(g) + 2O2(g) → CO2(g) + 2H2O (g), which reactant has the greatest rate of disappearance?
CH4
O2
CO2
H2O
CH4 and O2 have the same rate of disappearance.
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