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

Question

Quizplus · Accepted Answer

The ideal gas model suggests that gas molecules are very widely spaced, which means that a bubble of steam (which is a gas) will be less dense than the surrounding liquid water. This lower density is what allows the bubble to rise to the top of the container.

A Bubble of Steam Rises to the Top of a Container