'Thermochemical equation' diaporamas de présentation

Thermo-chemistry

Drill: Calculate the volume of gas released at 227 o C under 83.1 kPa pressure when 320 kg of NH 4 NO 3 is exploded forming N 2 , O 2 , & H 2 O: . Thermo-chemistry. AP Chm. Chapter 8. Chm II. Chapter 15. Thermochemistry. The study of heat transfer in chemical reactions.

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5 Energetics

5 Energetics. Year 11 DP Chemistry R Slider. 5.1 Exothermic and Endothermic. Chemical Energy-Enthalpy. Kinetic energy is the energy of motion Particles that make up matter are constantly in motion. Potential energy is stored energy (no motion)

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Heat from Reactions

Heat from Reactions. In this presentation you will:. explore how energy is produced and needed for reactions. identify how to determine whether a reaction is endothermic or exothermic. apply thermochemical energy equations. Next >. Reactants. Products. Introduction.

627 views • 39 slides

Thermochemistry

Thermochemistry. the study of transfers of energy as heat that accompany chemical reactions and physical changes. Heat and Temperature. Energy absorbed or released as heat in a chemical or physical change is measured in a calorimeter .

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Thermochemistry

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Unit 10

Unit 10. Thermochemistry. Energy. Energy: ability to do work or produce heat. Kinetic energy: energy of motion Potential energy: due to composition or position of an object. Chemical systems contain both kinetic and potential energy.

346 views • 18 slides

Section 15.3 Thermochemical Equations

Section 15.3 Thermochemical Equations. Write thermochemical equations for chemical reactions and other processes. Describe how energy is lost or gained during changes of state. Calculate the heat absorbed or released in a chemical reaction. Writing Thermochemical Equations.

732 views • 17 slides

Enthalpy of Formation

Enthalpy of Formation. D H rxn has been tabulated for many different reactions. Often tabulated according to the type of chemical reaction or process D H vap (heat of vaporization) liquid to gas D H fusion (heat of fusion) solid to liquid D H combustion (heat of combustion).

1.47k views • 17 slides

Section 15.3 Thermochemical Equations

Section 15.3 Thermochemical Equations. Write thermochemical equations for chemical reactions and other processes. Describe how energy is lost or gained during changes of state. Calculate the heat absorbed or released in a chemical reaction. Writing Thermochemical Equations.

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Ch.16 Reaction Energy

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Energetics

Energetics. Exothermic and endothermic reactions Topic 5.1. Energy and Heat. Energy is the capacity to do work or to transfer heat. Work (J) = force (N) x distance (m) Energy is measured in Joules. You do 1 Joule of work when you exert a force of 1 N over a distance of 1 meter.

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AS 2.7 Thermochemistry and Equilibrium

AS 2.7 Thermochemistry and Equilibrium. Energetic Reactions. Reactions that produce heat are releasing energy. The products contain less energy than the reactants. These reactions are called exothermic reactions (the heat ex its the reaction)

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Thermochemical Equations

Thermochemical Equations. Chemistry 11(C). Lesson Objectives Classify reactions as endothermic or exothermic Complete calculations using thermochemical equations. Thermochemical Equations. Endothermic and Exothermic Reactions. Energy can be absorbed or released.

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Hydrocarbons and Heat

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Measuring heat changes

Measuring heat changes. Section 11.2. After reading Section 11.2, you should know:. How to write or interpret a thermochemical equation How to calculate heat changes in a chemical or physical process. Calorimetry.

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Measuring Enthalpy Changes

Measuring Enthalpy Changes. Calorimetry. Calorimetry - the measurement of heat/ energy changes in a chemical reaction Calorimeter: insulated device used to measure the absorption or release of heat in chemical or physical processes Bomb Calorimeter: uses constant volume. Calorimeter.

383 views • 9 slides

CH 113 (M.Hall) Ch6

Studying calorimetry using cold packs. What if the dissolution is endothermic?. The dissolution of ammonium nitrate absorbs heat. Write the thermochemical equation for the dissolution of ammonium nitrate. HEAT. Water & Calorimeter. 1. CH 113 (M.Hall) Ch6.

254 views • 5 slides

Chapter 11 Section 3

Chapter 11 Section 3. Molar heat of fusion (? H fus ) -amount of heat required to melt one mole of a solid endothermic= + Ex- ice cube on table -heat is absorbed. Molar heat of solidification (? H solid ) -amount of heat required to solidify one mole of a liquid -exothermic= -

134 views • 5 slides