Helium Balloons

Question

Malik is investigating the properties of helium. Malik finds the chart below about helium in a textbook.



Malik uses models to study helium as different states of matter. He also investigates the motion of helium molecules.

Multiple Choice Question

Malik places a helium-filled balloon in a sunny window. He wonders how the motion of helium gas molecules in the balloon would be affected by the addition of thermal energy from the Sun. Which graph BEST represents the effect of adding thermal energy on the motion of the helium gas molecules?

A. 



B. 



C. 



D. 



Answer 1

To determine which graph best represents the effect of adding thermal energy on the motion of helium gas molecules, we need to consider the principles of gas behavior. When thermal energy is added to a gas, the kinetic energy of the molecules increases, causing them to move faster. This typically results in an increase in temperature and pressure (if the volume is constant).

Since I can't see the graphs you've provided, I can guide you on what to look for:

1. Increasing Motion: The graph should indicate an increase in the motion of molecules. This could be represented by an upward trend in speed or kinetic energy.

2. Temperature Relationship: The graph might show a positive correlation between temperature and the motion or speed of the molecules; as temperature increases, so does the velocity of the gas molecules.

3. Consistent Trend: Look for a graph that shows a steady increase as thermal energy is added, rather than one that plateaus or decreases.

Based on these criteria, you should choose the graph that illustrates clear and consistent increases associated with added thermal energy. If you can describe the graphs or their labels, I can help you further narrow it down!