Chemistry Kinetics

What does kinetics mean?

The speed of a reaction

DO the rate of reactions vary? How?

They vary temendously

Can be very fast (match lighting); slow (iron rusting); or be geologic (fossil fuels)

How can temperature affect reactions?

As temperature increases, our rate increases, so there is more energetic collisions (makes reactions faster)

How does the concentration affect the rate?

As concentration increases, the rate will too because there is more space for collisions. This leads to a faster rate.

What exactly is collision theory?

The mlcls have to touch to reach, the more they touch the more reaction there is.

How does physical state affect rate?

Gas-solid reaction mainly, the surface area is limited and makes it hard to collide

What is a isomer or isomerization?

It’s the same equation just changed a bit, has different properties.

What are the orders of the rate?

First order, which is where everything is doubled

Second order; where it is quadrupled

Zeroth order where its only changed by 1x

How do you know what order a table is in?

You find all the intervals for the time. Like 1/h2 for second. Which ever one is linear, or makes a straight line, is what order the reaction is in

what are the different units needed for integrated rate laws?

K = rate constant T - time [A]0 = intial rate [A]t = rate at time

What does half life mean in orders?

Time required for reactant concentration to drop to ½ its initial value, in first order it’s independent of [A]