A Container Is Filled with a Mixture of Helium (Light

question 50

Multiple Choice

A container is filled with a mixture of helium (light molecules) and oxygen (heavy molecules) gases. A thermometer in the container reads 22°C. Which gas molecules have the greater average speed?

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

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Definitions:

Remarriage rates

The statistical measure of how often individuals who have been divorced or widowed enter into subsequent marriages.

Stepfamily

A household in which two adults who are biological or adoptive parents (heterosexual, gay, or lesbian) with a child from a previous relationship marry or cohabit.

Cohabiting family

A family unit consisting of an unmarried couple living together in a long-term relationship, potentially with children.

Post-traditional family

A family structure that diverges from conventional societal norms, such as single-parent families or same-sex parents.