The Graph Below Represents a Temperature Versus Energy Plot for a Pure

question 33

Multiple Choice

The graph below represents a temperature versus energy plot for a pure substance. Identify the point(s) where:
(i) only gas exists
(ii) both solid and liquid exist

• A)(i) 7 (ii) 2 and 3
• B)(i) 7 (ii) 5 and 6
• C)(i) 1 (ii) 2 and 3
• D)(i) 4 (ii) 5 and 6
• E)(i) 4 (ii) 2 and 3

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Definitions:

Disease X

A placeholder name used to refer to a hypothetical, unknown, or newly emerging infectious disease.

City B

A hypothetical or nonspecific urban area referred to for the purpose of discussion or example.

Incidence Rates

denote the frequency at which new cases of a disease or condition occur in a population over a specified period of time.

Mortality Rates

The measure of the frequency of occurrence of death in a defined population during a specified period.