Rate of Reaction

List four factors that affects the rate of a reaction

• temperature

• concentration

• surface area

• volume

• catalysts

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

• 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

What is the rate of reaction? (2 correct answers)

• The rate at which reactants are used up

• How loud a reaction is

• The rate at which products are formed

• How much gas a reaction produces

Grinding a seltzer tablet into powder increases the rate of reaction due to increased

• concentration
• surface area
• temperature
• reactants

Products will form faster if____________

• the particle size of the reactants are larger.
• temperature is decreased.
• concentration of the reactants are increased.
• the reaction is not stirred.

A ______________ is a substance that increases the rate of a reaction without being used up during the reaction. 

• catalyst
• product
• reactant
• solute

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

More collisions correspond to a: 

• Faster reaction rate  
• Slower reaction rate
• Constant reaction rate 
• None of the above

The addition of light energy will (a)   the rate of reaction.