Question

With the decrease in thermal energy of gas molecules, attraction and repulsion forces :

• A. increases
• B. decreases
• C. increases and decreases respectively
• D. decreases and increases respectively

Answer 1

The correct option is C increases and decreases respectively

With the decrease in the thermal energy of gas molecules, the molecules tend to approach the liquid state. Therefore, the attractive forces increase and repulsive forces decrease between the molecules.

Hence, the correct option is $\text{C}$