Why Is the Entropy of Vaporization of a Material Always

question 29

Multiple Choice

Why is the entropy of vaporization of a material always smaller than its entropy of fusion?

• A) Because it involves a less disordered product.
• B) Because it involves a less disordered starting material.
• C) Because gases are always smaller in density than their corresponding liquids or solids.
• D) It is not; it is always larger.

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Definitions:

Classical Conditioning

A learning process that occurs through associations between an environmental stimulus and a naturally occurring stimulus, famously demonstrated by Pavlov’s dogs.

Systematic Desensitization

A therapeutic technique used to gradually reduce anxiety or fear towards a particular object or situation by slowly exposing the patient to the fear source while in a state of relaxation.

Token Economy

A behavioral modification technique that involves providing tokens as rewards for desired behaviors, which can later be exchanged for privileges or treats.

Operant Conditioning

A learning approach where the robustness of a behavior is changed by providing motivation or administering discipline.