12. Basic Chemistry: Chemical Kinetics
Authored by Alina Primasari
Chemistry
University
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25 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which of the following is NOT a factor affecting reaction rate?
Polarity of the reactants
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The catalyst alters the rate of a chemical reaction by .......................
changing the products formed in the direction of the reaction
providing an alternative pathway with a lower Ea
increasing the frequencies of collisions between molecules
providing a surface on which the molecules react
3.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Which of the following are true about reaction rates?
The overall rate law is determined by the fastest step of a reaction.
The presence of a catalyst will increase the number of molecules entering the transition state.
An increase in temperature will increase the rate of a reaction.
Decreasing the particle size will make particles move faster.
Decreasing the concentration of reactants will increase the rate at which products yield.
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
To measure rate of reaction, we can monitor change in which of the following?
concentration reactants or products
colour of products
mass product
pH level of reactant
temperature product
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The rate of reaction is the change in the ............ of a reactant or product per unit of ...............
temperature, pressure.
mass, concentration.
pressure, time.
concentration, time.
mass, temperature.
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
2N2O5(g) → 4NO2(g) + O2(g)
rate of following reaction is ........................
7.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
The following data were measured for the reaction
BF3(g) + NH3(g) ⟶ F3BNH3(g)
What is the order in [BF3] ?
1
0
3
4
2
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