COLLISION THEORY. HOW REACTIONS HAPPEN Rate of reaction – How quickly a reaction happens. 1.Energy of the collision: Reactant must have enough energy.

Slides:

Advertisements

Similar presentations

Reaction Rates What affects the rate of reaction?.

Advertisements

Reaction Rates, Catalysts and Collision Theory. Rates of reaction The rate of a reaction measures how fast it happens. Increased reaction rate means that.

Section 2.8—Speeding Up A Reaction

Reaction Rates. Chemical Equation Review Chemical Reactions Every reaction has a chemical equation. The reaction of nitrogen monoxide with ozone produces.

Reaction Rates and Equilibrium

Reaction Rates. Rate of a Chemical Reaction: Is a measure of how quickly or slowly the reaction occurs (Science 10 Curriculum Sask Learning) To measure.

Reaction Kinetics Introductory lesson. Reaction Kinetics The study of the rates of reactions and the factors which affect the rates. What is a reaction.

Chemical Kinetics The area of chemistry that concerns reaction rates and reaction mechanisms.

Rates and Equilibrium Notes, part I Collision Theory Factors Affecting Reaction Rates.

Unit 9 – Reaction Rates and Equilibrium The area of chemistry that concerns reaction rates (how fast a reaction occurs)

Section 18.1 Collision Theory, Activation Energy, & Rates of Reactions

Reaction Rates Ch 18 Notes. Collision Theory 1.Reacting substances (atoms, ions, molecules, etc.) must collide in order to react 2.Collisions have to.

RATES OF REACTION. Rates of Reaction The rate of a chemical reaction is the speed at which the reaction occurs (i.e. speed at which the reactants are.

Chemical Kinetics – study of the rates of chemical reactions

Branch of chemistry that deals with the rates of chemical reactions TOPIC 8 Review Book.

Rate of Reaction. Rates of chemical reactions Reaction rate - how quickly reactants turn into products.

Reaction Process. A reaction mechanism is a step by step sequence of reactions that show an overall chemical change The same reaction can occur by different.

CHEMICAL CHANGE AND YOUR BODY YOUR BODY DOES A LOT OF CHEMISTRY. IT IS ESTIMATED THAT THERE ARE 6 X REACTIONS/CELL/SEC IN THE AVERAGE HUMAN. SKIN.

Chapter 18: Equilibrium. Collision Theory Rate: Change over time Rate of chemical change (reaction rate) is amount of reactant changing over time. For.

How do reactions occur? Must have an effective collision between reacting particles for reaction to occur. “Collision Theory” Collision must be energetic.

Reactions rate and Collision Theory

Reaction Process.

Section 2.8—Speeding Up A Reaction

Reaction Rates.

Chemical Reactions and Collision Theory

Catalysis Catalyst: A substance that speeds up a reaction without being consumed Enzyme: A large molecule (usually a protein) that catalyzes biological.

Rate of Reaction Chapter 6.2 Pages

Reaction Rates.

Catalysis Catalyst: A substance that speeds up a reaction without being consumed Enzyme: A large molecule (usually a protein) that catalyzes biological.

Ch. 17 – Chemical Reactions

Warm up # Label each part of the graph. A. B. C. D. E. F. G. H.

Reaction Rates.

Reaction Rates & Collision Theory.

Rates and Equilibrium Notes, part I

Reaction Kinetics Chapter 17.

Five Factors that affect the Rate of Reaction

Section 2.8—Speeding Up A Reaction

Reaction Rate A measure of the speed of any change that occurs within an interval of time Usually expressed as the amount of reactant changing per unit.

Chemical Reactions.

Chemical Kinetics.

Rates of Chemical Reactions

What things affect the rate of reactions?

Kinetics Branch of chemistry that deals with the rates of chemical reactions TOPIC 8 Review Book.

Chemical Kinetics.

Chemical Reactions and Reaction Rates

Ms. Samayoa Birmingham community charter high school Chemistry

Rates of Reaction Unit 8.

Ch. 17 – Chemical Reactions

Reaction Energy.

Kinetics Branch of chemistry that deals with the rates of chemical reactions TOPIC 8 Review Book.

Kinetic Molecular Theory

Aim: How are reaction (rxn) rates affected?

Collision Theory & Reaction Rates

Collision theory.

Reaction Rates.

Unit 6: Solutions and Kinetics

Rate Affecting Factors

By Lenina, Vicky and Jade

Unit 8: Rates of Reactions

Unit 4: Kinetics Collision Theory.

Chapter 17: Reaction Rates

Section 2.8—Speeding Up A Reaction

FACTORS THAT AFFECT RATES OF REACTION

Concentration and Collisions

Catalysis Catalyst: A substance that speeds up a reaction without being consumed Enzyme: A large molecule (usually a protein) that catalyzes biological.

Unit 8 Kinetics and Rates of Reactions

Presentation transcript:

COLLISION THEORY

HOW REACTIONS HAPPEN Rate of reaction – How quickly a reaction happens. 1.Energy of the collision: Reactant must have enough energy to react. a.This is known as the activation energy 2.Geometry of collision: Particles must be oriented in the proper way for a reaction to occur

FACTORS EFFECTING REACTION RATE Temperature: Higher temperature increases the rate of reaction Higher temp Higher kinetic energy More high energy collisions Faster reaction In general, reactions will occur most rapidly if the reactants are a liquid or a gas

FACTORS EFFECTING REACTION RATE Concentration: High concentration increases the rate of reaction More particles More collisions Faster reaction

FACTORS EFFECTING REACTION RATE Surface area/particle size: Small particles increase the surface area of a solid and increases the rate of reaction (heterogeneous reactions) More particle exposed More collisions Faster reaction

FACTORS EFFECTING REACTION RATE Pressure: Increasing the pressure of a gas will increase the rate of reaction More particles in close proximity to each other More collisions Faster reaction

CATALYSTS AND ENZYMES A catalyst speeds up a reaction without being consumed in the reaction. Enzymes – A large molecule, usually a protein, that catalyze biological reactions Enzymes and catalysts provide alternative pathways for a reaction to occur Lowers the activation energy More collision will have enough energy to react

PRACTICE Page 604 #1-#4 Page 628 #8