Chemistry - rate of reactions

Rate of Reaction

Speed at which reactants convert to products.

Average Rate

Total change in product or reactant over time.

Collision Theory

Particles must collide with sufficient energy to react.

Activation Energy

Minimum energy required for a reaction to occur.

Surface Area

Total area of solid reactants exposed to reactants.

Concentration

Amount of substance in a given volume.

Pressure

Force exerted by gas particles in a volume.

Catalyst

Substance that increases reaction rate without being consumed.

Gas Syringe

Device used to measure volume of gas produced.

Rate Graph

Graph showing change in reaction rate over time.

Tangent Method

Calculating rate at a specific time using slope.

Fixed Volume

Constant amount of liquid used in experiments.

Sodium Thiosulfate

Chemical used in reaction rate experiments.

Mass Lost

Decrease in mass of reactants during a reaction.

Time Taken

Duration for a reaction to complete or measure.

Volume of Gas Produced

Amount of gas generated during a reaction.

Rate Calculation

Formula to determine speed of a reaction.

Kinetic Energy

Energy of particles due to their motion.

Successful Collisions

Collisions that result in a chemical reaction.

Precipitate Formation

Solid formed from a solution during a reaction.

Fixed Mass

Constant weight of a reactant in experiments.

Time Intervals

Specific periods for measuring reaction progress.

Volume Measurement

Quantifying the amount of gas or liquid produced.