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Apologia Chemistry Module 13
A list of vocabulary words, phrases and equations to be learned for module 13
10
Science
11th Grade
08/20/2012

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Cards

Term
Entropy
Definition
A measure of the disorder or randomness in a closed system.
Term
The Second Law of Thermodynamics
Definition
The entropy of the universe must always either increase or remain the same. It can never decrease.
Term
Levels of Entropy:
Solid
Liguid
Gas
Definition
Solid: Low Entropy
Liquid: Higher Entropy
Gas: Highest Entropy
Term
T/F: Energy Increases With Temperature
Definition
True
Term
T/F: Energy Increases as Matter Decreases
Definition
True
Term

Equation: The change in entropy of the universe is equal to or more than zero.

 

 

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Definition
Term
Define Change in Entropy.
Definition
Change in entropy equals the sum of the products minus the sum of the reactants.
Term
ΔHf of an element is equal to what?
Definition
Zero.
Term
All substances, including elements have what?
Definition
An absolute entropy.
Term
Does the total ΔS of the universe change?
Definition
No. It is a constant balancing act.
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