endothermic and exothermic reactions. exothermic reactions chemical reactions that release heat with...

ENDOTHERMIC AND EXOTHERMIC REACTIONS

Upload: duane-may

Post on 23-Dec-2015

250 views

Category:

Documents

0 download

Report

Download

Embed Size (px):

TRANSCRIPT

ENDOTHERMIC AND EXOTHERMIC

REACTIONS

EXOTHERMIC REACTIONS

• Chemical Reactions that RELEASE heat with the products.

You may see an exothermic reaction written like this…

REACTANTS PRODUCTS + ENERGY

REACTANTS PRODUCTS + HEAT

Page 3: ENDOTHERMIC AND EXOTHERMIC REACTIONS. EXOTHERMIC REACTIONS Chemical Reactions that RELEASE heat with the products. You may see an exothermic reaction

ENDOTHERMIC REACTIONS

• CHEMICAL REACTIONS THAT ABSORB ENERGY OR HEAT IN THE REACTANTS.

You may see an endothermic reaction written like this…

ENERGY + REACTANTS PRODUCTSOR

HEAT + REACTANTS PRODUCTS

Page 4: ENDOTHERMIC AND EXOTHERMIC REACTIONS. EXOTHERMIC REACTIONS Chemical Reactions that RELEASE heat with the products. You may see an exothermic reaction

EVIDENCE OF REACTIONS

• AFTER AN EXOTHERMIC REACTION, THE PRODUCTS FEEL HOT!

• AFTER AN ENDOTHERMIC REACTION, THE PRODUCTS FEEL COLD!

Page 5: ENDOTHERMIC AND EXOTHERMIC REACTIONS. EXOTHERMIC REACTIONS Chemical Reactions that RELEASE heat with the products. You may see an exothermic reaction

ENDOTHERMIC OR EXOTHERMIC?

Sunlight + 6CO2 + 6H2O C6H12O6 + 6O2

CH4 + 2O2 CO2 + 2H2O + Energy

ENDOTHERMIC!

EXOTHERMIC!

Author: J R Reid Thermochemistry - Introduction Enthalpy (H) Exothermic Reactions Endothermic Reactions Reaction Profile Diagrams Using Δ H

Exothermic and Endothermic Reactions, and …...Science 10 Ms. Dam of matter, Exothermic/Endothermic Reactions and Activation Energy Energy in Chemical Reactions: light, All chemical

Exothermic and Endothermic Reactions Section 5.1

Endothermic and Exothermic Chemical Reactions Exothermic: Chemical reactions that release energy in the form of heat, light, or sound. Ice pack releases

12. Endothermic or Exothermic Chemical Reactions...Endothermic or Exothermic Chemical Reactions 206 PS-2843B Most disposable (one-use) chemical hot-packs contain chemicals that react

Exothermic and endothermic reactions. Chemical Reactions usually involve a temperature change (heat is given out or taken in)

A novel reverse flow reactor coupling endothermic and exothermic … · A NOVEL REVERSE FLOW REACTOR COUPLING ENDOTHERMIC AND EXOTHERMIC REACTIONS ... 4.1 Overall energy balance 42

Endothermic vs. Exothermic Reactions:

Research Article Effects of Exothermic/Endothermic ...downloads.hindawi.com/archive/2013/692516.pdf · Effects of Exothermic/Endothermic Chemical Reactions with Arrhenius Activation

Endothermic/Exothermic {PowerPoint}

OCR_CD2_Endo and Exo reactions Chemical Applications Assignment 3 Endothermic and exothermic reactions

Exothermic and Endothermic Reactions It’s a give and take relationship!!!!

Energy Change During Chemical Reactions Endothermic and Exothermic Changes

Chemical Reactions Reactants and Products. Write down Exothermic and Endothermic definitions

Lecture B. Day 4 Activities: Exothermic or endothermic? Objectives –Be able to identify exothermic and endothermic reactions based on temperature change

Energetics. 5.1 Endothermic and Exothermic Reactions Endothermic rxn heat is taken in from the surroundings (rxn vessel gets cooler) Exothermic rxn

Turbulent™ Technology - Dusatecdusatec.com/images/Turbulent_brochure.pdf · • Chemical reactions, endothermic and exothermic, as well as biological reactions under pressure or

Exothermic and Endothermic Reactions Linking Energy Profile Diagrams to Thermometer Readings

Chemistry Chemical Reactions - University of British …scienceres-edcp-educ.sites.olt.ubc.ca/...reactions_exoEndothermic.pdfChemistry Chemical Reactions: Exothermic and Endothermic

Exothermic Reactions HOT OR COLD. Lesson Objectives We are learning to:- Identify exothermic and endothermic reactions What I’m Looking For:- You must

CHEMICAL REACTIONS Produce (lose) energy = exothermic reaction Absorb (require) energy = endothermic reaction

Exothermic and Endothermic Reactions Key Differences Between the Two Types of Reactions

Norlington School · Web viewDefine exothermic and endothermic reactions and activation energy. 5 Sketch a generic reaction profile diagram for an exothermic or endothermic reaction

Energetics Topic 5.1 – 5.2 Topic 5.1 Exothermic and Endothermic Reactions

Chemical Reactions, cont’d. Absorbs energyReleases energy Endothermic Reaction Exothermic Reaction

{ Exothermic & Endothermic REACTIONS Energy in Reactions

Types of Reactions Science 10 Chapter 6. 6.1 Exothermic vs Endothermic Reactions Exothermic: Energy-releasing rxn. (may be hot) Ex: explosion, burning

Exothermic and Endothermic Processes ... and Endothermic Processes Chemical Reactions ! All chemical reactions involve bond breaking and bond forming ! Energy is absorbed when bonds

Physical and Chemical Changes and Exothermic and Endothermic Reactions

12.5 Exothermic & Endothermic Reactions - Do Chemistrydochemistry.weebly.com/uploads/2/3/7/3/23730518/12.5... · 2020-03-19 · Exothermic reactions give out energy to their surroundings,

Chemistry Chemical Reactions : Exothermic and Endothermic

Exothermic and Endothermic Reactions Part 5 of our May MCAS cram series!

Endothermic and Exothermic

Kinetic Theory and Exothermic/Endothermic Reactions