Questionarium: Chemical Kinetics

Chemical Kinetics
Questionarium

1. The reaction rate can be defined as the concentration variation of:
one of the products.
one of the reactants or products.
one of the reactants.

2. The reaction rate has as the following units:

meter / second
concentration / second
second^-1

3. The reaction order is always defined in relation to the concentrations of the:

reactants. products. reactants and products.

4. For a reaction with reaction order of one, the reaction rate constant has the following units:

concentration / second
second^-1
concentration^-1 * second^-1

5. The half time reaction life is the needed time for the concentration of a:

product to increase to half of its final value.
reactant to decrease to half of its initial value.
reactant to decrease to half of its final value.

6. For a certain reaction with reaction order of two, the reaction rate constant has the following units:

concentration / second
meter / second
concentration^-1 * second^-1

7. The kinetic constant is defined by the Arrhenius law. The equation is:

k = - A ln (E/RT)
k = P V / R T
k = A exp^-E/RT

8. How does temperature affects the reaction rate?

Linearly.
Exponentialy.
Doesn't affect.

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