Heat Is Added to a Pure Substance in a Closed

question 37

Multiple Choice

Heat is added to a pure substance in a closed container at a constant rate. The figure shows a graph of the temperature of the substance as a function of time. If L_f = latent heat of fusion and L_v = latent heat of vaporization, what is the value of the ratio L_v / L_f for this substance?

• A) 5.0
• B) 4.5
• C) 7.2
• D) 3.5
• E) 1.5

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Definitions:

Behaviorist Perspective

A view in psychology that focuses on observable behaviors and the ways in which they're learned, rather than on internal states like thoughts or feelings.

Rewards And Punishments

Fundamental components of reinforcement theory, referring to stimuli that encourage or discourage certain behaviors by their presence or absence.

Learning

The acquisition of knowledge or skills through study, experience, or teaching, leading to a relatively permanent change in behavior or potential behavior.

Behavioral Traits

Characteristic patterns of actions, reactions, and interactions observable in an individual's behavior over time.