The Figure Shows a Graph of the Temperature of a Pure

question 43

Multiple Choice

The figure shows a graph of the temperature of a pure substance as a function of time as energy through heating is added to it at a constant rate in a closed container.If L_F is the latent heat of fusion of this substance and L_V is its latent heat of vaporization,what is the value of the ratio L_V/L_F?

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

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Definitions:

-oid

A suffix used in English to denote similarity to something else, indicating an object's resemblance in form or structure to another.

Caution

A warning or advice to prevent risk or danger.

Sigmoidoscopy

A medical examination of the lower part of the large intestine using a flexible tube called a sigmoidoscope.

Large Intestine

The last part of the digestive system, responsible for water absorption and formation of feces.