A Container Is Filled with a Mixture of Helium and Oxygen

question 19

Multiple Choice

A container is filled with a mixture of helium and oxygen gases. A thermometer in the container indicates that the temperature is 22°C. Which gas molecules have the greater average speed?

• A)The helium molecules do because they are monatomic.
• B)It is the same for both because the temperatures are the same.
• C)The oxygen molecules do because they are diatomic.
• D)The oxygen molecules do because they are more massive.
• E)The helium molecules do because they are less massive.

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Definitions:

Depression

A common mental disorder characterized by persistent sadness, loss of interest in activities, and a range of physical and cognitive symptoms.

Obsessive-compulsive Personality Disorder

A mental disorder characterized by a preoccupation with orderliness, perfectionism, and control at the expense of flexibility, openness, and efficiency.

Obsessive-compulsive Disorder

A chronic disorder characterized by uncontrollable, reoccurring thoughts (obsessions) and behaviors (compulsions) that the individual feels the urge to repeat.

Ego-syntonic

Refers to thoughts, impulses, and behaviors that are consistent with an individual's self-perception, often contrasted with ego-dystonic, which feels foreign to one's self-image.