A Bubble of Steam Rises to the Top of a Container

question 52

Multiple Choice

A bubble of steam rises to the top of a container of boiling water.Which of the following features of the ideal gas model best explains this phenomenon?

• A)Gases consist of molecular particles moving at any instant in straight lines
• B)Molecules collide with each other and with the container walls without loss of energy
• C)Gas molecules behave as independent particles
• D)Gas molecules are very widely spaced
• E)The actual volume of molecules is negligible compared to the space they occupy

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Definitions:

Testosterone

A steroid hormone that plays a key role in the development of male reproductive tissues, as well as promoting secondary sexual characteristics such as increased muscle and bone mass, and the growth of body hair.

Estrogens

A group of steroid hormones that promote the development and maintenance of female characteristics of the body.

23rd Chromosome

One of the pair of chromosomes responsible for determining the sex of an individual, with XX typically denoting female and XY typically denoting male.

Sex Chromosomes

The chromosomes (X and Y) responsible for determining the biological sex of an organism.