Slide 1 of 33 © Copyright Pearson Prentice Hall > Measuring and Expressing Enthalpy Changes Calorimetry _________________ is the precise measurement of the __________ ________________ into or out of a system for chemical and physical processes. 17.2

Slide 2 of 33 © Copyright Pearson Prentice Hall > Measuring and Expressing Enthalpy Changes Calorimetry In ___________, the ________ released by the system __ _________ ____ the ___________ absorbed by its surroundings. Conversely, the heat absorbed by a system is equal to the heat released by its surroundings. 17.2

Slide 3 of 33 © Copyright Pearson Prentice Hall > Measuring and Expressing Enthalpy Changes Calorimetry The insulated device used to measure the absorption or release of heat in chemical or physical processes is called a ____________. 17.2

Slide 4 of 33 © Copyright Pearson Prentice Hall > Measuring and Expressing Enthalpy Changes Calorimetry Constant-Pressure Calorimeters The ___________ __________________ of a system at ____________ ________________ is the same as a property called the _____________ (H) of the system. 17.2

Slide 5 of 33 © Copyright Pearson Prentice Hall > Measuring and Expressing Enthalpy Changes Calorimetry Constant-Volume Calorimeters Calorimetry experiments can be performed at a constant volume using a bomb calorimeter. 17.2

© Copyright Pearson Prentice Hall SAMPLE PROBLEM Slide 6 of

© Copyright Pearson Prentice Hall Slide 7 of 33 Practice Problems for Sample Problem 17.2

© Copyright Pearson Prentice Hall Measuring and Expressing Enthalpy Changes > Slide 8 of 33 Thermochemical Equations In a chemical equation, the _____________ _______________ for the reaction can be written as either a _____________ or a ____________. 17.2

Slide 9 of 33 © Copyright Pearson Prentice Hall > Measuring and Expressing Enthalpy Changes Thermochemical Equations A chemical equation that includes the enthalpy change is called a _______________ equation. 17.2

Slide 10 of 33 © Copyright Pearson Prentice Hall > Measuring and Expressing Enthalpy Changes Thermochemical Equations The heat of reaction is the enthalpy change for the chemical equation exactly as it is written. 17.2

© Copyright Pearson Prentice Hall > Measuring and Expressing Enthalpy Changes Slide 11 of 33 Thermochemical Equations 17.2 Exothermic Reaction

© Copyright Pearson Prentice Hall > Measuring and Expressing Enthalpy Changes Slide 12 of 33 Thermochemical Equations 17.2 Endothermic Reaction

© Copyright Pearson Prentice Hall SAMPLE PROBLEM Slide 13 of

© Copyright Pearson Prentice Hall Slide 14 of 33 Practice Problems for Sample Problem 17.3

Slide 15 of 33 © Copyright Pearson Prentice Hall > Measuring and Expressing Enthalpy Changes Thermochemical Equations 17.2

Slide 16 of 33 © Copyright Pearson Prentice Hall > Measuring and Expressing Enthalpy Changes Thermochemical Equations The ___________ ________ _____________ is the heat of reaction for the complete burning of _________ ______________ of a substance. 17.2