Question

1: gas sample
diagram on the right shows a model of a sample of gas particles at room temperature.
the sun shines brightly through a window in the room, causing the temperature of the room to increase.
which of these statements best describes how this would affect the atoms and molecules in the room’s air?
thermal energy is being removed, increasing the collisions of the particles
thermal energy is being added, decreasing the gas pressure.
thermal energy is being added, increasing the particle motion
thermal energy is being removed, decreasing the particle motion

Explanation:

1. Analyze the temperature change: The sun shining increases the room's temperature, so thermal energy is added (eliminating options with "removed").
2. Relate thermal energy to particle motion: Adding thermal energy increases the kinetic energy of gas particles, leading to more motion (and more collisions, higher pressure).
3. Evaluate options:

• "Thermal energy is being removed..." is wrong (energy is added).
• "Thermal energy is being added, decreasing..." is wrong (adding energy increases pressure, not decreases).
• "Thermal energy is being added, increasing the particle motion" matches the physics of gas particles (temperature increase → higher kinetic energy → more motion).
• The last option is wrong (energy is added, not removed, and motion would increase, not decrease).

Answer:

Thermal energy is being added, increasing the particle motion