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>Measuring and Expressing Enthalpy Changes

Calorimetry

_________________ is the precise

measurement of the __________

________________ into or out of a system for

chemical and physical processes.

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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.

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Calorimetry

The insulated device used to measure the

absorption or release of heat in chemical or

physical processes is called a ____________.

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Calorimetry

Constant-Pressure Calorimeters

The ___________ __________________ of

a system at ____________

________________ is the same as a

property called the _____________ (H) of the

system.

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Calorimetry

Constant-Volume Calorimeters

Calorimetry experiments can be performed at a constant volume using a bomb calorimeter.

17.2


SAMPLE PROBLEM

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17.2


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Practice Problems for Sample Problem 17.2


Measuring and Expressing Enthalpy Changes

>

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Thermochemical Equations

In a chemical equation, the

_____________ _______________ for the

reaction can be written as either a

_____________ or a ____________.

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A chemical equation that includes the

enthalpy change is called a

_______________ equation.

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The heat of reaction is the enthalpy change for the chemical equation exactly as it is written.

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Thermochemical Equations17.2

Exothermic Reaction



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Endothermic Reaction


SAMPLE PROBLEM

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17.3


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Practice Problems for Sample Problem 17.3

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The ___________ ________

_____________ is the heat of reaction for the

complete burning of _________

______________ of a substance.

17.2

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