Rates of Reactions

A temperature increase causes the particles to ......

• to slow down

• move faster

• collide higher

• in the right order

Why does a higher concentration increase the rate of reaction?

• it increases the amount of reactants

• it lowers the activation energy

• it increases the energy of particle collisions

• it increases the frequency of particle collisions

Why does a higher temperature increase the rate of a reaction?

• it increases both the frequency and energy of particle collisions

• it only increases the frequency of particle collisions

• it only increases the energy of particle collisions

• it reduces the activation energy of the reaction

What is the rate of reaction?

• How fast a reaction is 
• How big a reaction is
• How loud a reaction is
• How much gas a reaction produces

The rate of a reaction is how _____________ a reaction occurs.

• Quickly

• Easily

• Unusually

• Differently

Increasing the temperature gives particles more __________.

• Time

• Energy

• Space

• Frequency

Increasing the temperature, increases the _____ of reaction

• Catalyst

• Time

• Rate

• Weight

Rate of chemical reaction means

• amount of product formed
• speed of reaction
• concentration of reacting particles
• combining reactants with products

You add more people into an enclosed space in hope for more collisions. You have increased:

• temperature

• concentration

• pressure

• catalyst

Why does a higher temperature increase the rate of a reaction?

• it increases both the frequency and energy of particle collisions

• it only increases the frequency of particle collisions

• it reduces the energy of particle collisions

• it reduces the activation energy of the reaction