Gases

rate = (change in concentration of limiting reagent)/(change in time)

formula for rate of reaction

limiting reagent

the reactant that is completely depleted first

What must the data be in the form of to determine rate of reaction?

a graph or table

What is this graph?

concentration of product

What is this graph?

concentration of reactant

The rate of reaction is the slope that is ___ to the slope that is ___ to one point on the graph showing the change of concentration of a product.

equal; tangent

The rate of reaction is the slope that is ___ to the slope that is ___ to one point on the graph showing the change of concentration of a reactant.

opposite; tangent

k = Ae^(-Ea)/(rT)

Arrhenius formula

What is the Arrhenius formula used for?

proving that as temp increases, so does rate of reaction

As temperature ___, the rate of reaction decreases

decreases

What if the value of A is increased in the following equation:

rate = k(A^x)(B^y)(C^z)

the rate of reaction increases

What does A represent in the equation:

rate = k(A^x)(B^y)(C^z)

the concentration of substance A

As the concentration of a substance increases, so does the…

reaction rate

As the particles get bigger, the rate of reaction…

decreases

Bigger particles —> less ___ —> ___ reactions

collisions; less

___particles —> more collisions —> ___ reactions

Smaller; more

molecules that create a pathway to reaction

catalyst

What happens to the extra energy when a catalyst is used?

it is put towards increasing the speed of reactions

If the only way for a reaction to start is through using a catalyst, what usually happens to activation energy?

it decreases

More catalysts —> reaction rate ___

increases

The reaction rate is ___ changing

always

What does A, B, C represent in this equation:

rate=k(A