'Heat change' presentation slideshows

Drill: Draw LDDs for:

1.61k views • 142 slides

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.

1.43k views • 129 slides

1 November 2011

1 November 2011. Objective : You will be able to: describe enthalpy and differentiate between endothermic and exothermic reactions and calculate the enthalpy of a reaction. Homework : p. 263 #21, 22, 23, 24, 25: tomorrow. Thermochemistry.

1.69k views • 126 slides

Drill: Calculate mole fraction of:

Calculate the volume of gas released at 227 o C under 83.1 kPa pressure when 16 kg of NH 4 NO 3 is exploded forming N 2 , O 2 , & H 2 O:. Drill: Calculate mole fraction of:. A solution containing 331 g Pb(NO 3 ) 2 in 1782 mL water. Thermo-chemistry. Chm II. Chapter 15. Thermochemistry.

1.29k views • 105 slides

Energetics

Energetics. Exothermic and Endothermic reactions. Energy = force x distance (Joules). In chemical reactions, we need energy usually in the form of heat. Energy is absorbed to break the bonds of the reactants and energy is given out when new bonds are formed in the products.

1.32k views • 100 slides

Thermo-chemistry

Calculate the volume of gas released at 227 o C under 83.1 kPa pressure when 16 kg of NH 4 NO 3 is exploded forming N 2 , O 2 , & H 2 O: . Thermo-chemistry. Thermochemistry. The study of heat transfer in chemical reactions. Thermochemistry. Heat change Calorimetry TCE.

1.02k views • 90 slides

Thermo-chemistry

Calculate the volume of gas released at 227 o C under 83.1 kPa pressure when 16 kg of NH 4 NO 3 is exploded forming N 2 , O 2 , & H 2 O:. Thermo-chemistry. Thermochemistry. The study of heat transfer in chemical reactions. Thermochemistry. Heat change Calorimetry TCE.

1.05k views • 90 slides

Exothermic and endothermic reactions

Exothermic and endothermic reactions. Chemical Reactions usually involve a temperature change (heat is given out or taken in). Law of conservation of energy. Energy cannot be created or destroyed , but only changed from one form into another. Magnesium reacting with acid.

2.13k views • 77 slides

CHEM 160 General Chemistry II Lecture Presentation Chemical Thermodynamics

CHEM 160 General Chemistry II Lecture Presentation Chemical Thermodynamics. Chapter 19. Thermodynamics. Thermodynamics study of energy and its transformations heat and energy flow Helps determine natural direction of reactions

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Chapter 19

Chapter 19. Reaction Rates and Equilibrium. Rates of reaction A. Collision Theory 1. rates : measure the speed of any change during a time interval 2. collision theory : particles react to form products when they collide. 3.

510 views • 32 slides

calorie s pecific heat capacity

418 views • 29 slides

JF Basic Chemistry Tutorial Thermodynamics

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CHAPTER 17

CHAPTER 17. THERMOCHEMISTRY. ENERGY. Thermochemistry is the study of the heat changes that occur during chemical reactions and physical changes of state . Heat (q) is a form of energy that always flows from a warmer object to a cooler object .

266 views • 20 slides

Do now

Do now. 1) Take out graphic organizers (turn in any late work) 2) Work on the following problem 55 grams of Compound X has 50 kJ of energy before decomposing into elements Y and Z, which have a combined energy of 20 kJ. What is the combined mass of elements Y and Z?

309 views • 19 slides

A Taste of Thermodynamics and Reaction Rates

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Thermochemistry is the study of heat change in chemical reactions.

SURROUNDINGS. SYSTEM. Thermochemistry is the study of heat change in chemical reactions. The system is the specific part of the universe that is of interest in the study. closed. isolated. open. energy. nothing. Exchange:. mass & energy. 6.2. Law of COE.

374 views • 18 slides

Thermochemistry

294 views • 15 slides

Energy

232 views • 11 slides

Heat

Heat. Combustion. of. Some Questions!. In chemical terms what are we talking about when we mean the heat of something?. What are we talking about when we mean the heat of combustion?. What is required for combustion to occur?. Heat of Combustion definition.

296 views • 10 slides

Heat and Temperature

Heat and Temperature. Heat – the energy that flows from hot to cold. Measured in Joules (J) or calories (cal). Temperature – measure of average kinetic energy. Measured in Celsius (C) or Kelvins (K). The difference. What factors affect the amount of heat flow?.

506 views • 6 slides