Chemical Reactivity: Rates of Reaction

What is Activation Energy?

• The minimum energy required by the reactant particles to initiate a chemical reaction.

• A substance that changes the rate of a chemical reaction but is not used up in the reaction.

• The number of particles of a substance in a given volume. Units are moles per litre (mol L^-1)

• The number of reactions happening in a given amount of time.

What is a Catalyst?

• The minimum energy required by the reactant particles to initiate a chemical reaction.

• A substance that changes the rate of a chemical reaction but is not used up in the reaction.

• The number of particles of a substance in a given volume. Units are moles per litre (mol L^-1)

• The number of reactions happening in a given amount of time.

What is Collision Theory?

• The minimum energy required by the reactant particles to initiate a chemical reaction.

• States that reactant particles must collide with sufficient energy and the correct orientation to initiate a chemical reaction.

• All matter is made up of very small particles and these particles are in constant motion.

• The number of reactions happening in a given amount of time.

What does concentration mean?

• The minimum energy required by the reactant particles to initiate a chemical reaction.

• States that reactant particles must collide with sufficient energy and the correct orientation to initiate a chemical reaction.

• The number of particles of a substance in a given volume. Units are moles per litre (mol L^-1)

• The number of reactions happening in a given amount of time.

Define what reaction rate means?

• The minimum energy required by the reactant particles to initiate a chemical reaction.

• States that reactant particles must collide with sufficient energy and the correct orientation to initiate a chemical reaction.

• The number of particles of a substance in a given volume. Units are moles per litre (mol L^-1)

• The number of reactions happening in a given amount of time.

Define what surface area means?

• The extent of the surface of an object or substance

• States that reactant particles must collide with sufficient energy and the correct orientation to initiate a chemical reaction.

• The number of particles of a substance in a given volume. Units are moles per litre (mol L^-1)

• The number of reactions happening in a given amount of time.

Define what temperature means in chemistry?

• The extent of the surface of an object or substance

• States that reactant particles must collide with sufficient energy and the correct orientation to initiate a chemical reaction.

• The number of particles of a substance in a given volume. Units are moles per litre (mol L^-1)

• A measure of the kinetic energy possessed by particles of matter

What is Particle Theory?

• The minimum energy required by the reactant particles to initiate a chemical reaction.

• States that reactant particles must collide with sufficient energy and the correct orientation to initiate a chemical reaction.

• All matter is made up of very small particles and these particles are in constant motion.

• The number of reactions happening in a given amount of time.

Increasing the number of particles in a given volume, increases the number collisions.

True or False?

• True

• False

Decreasing the speed of particles by cooling them, increases the number collisions.

True or False?

• True

• False