Question

6. Which of the following will occur as the speed of the molecules in a substance increase?

a. The substance will become cooler.
b. The substance will begin to take up less space.
c. The force of attraction between the molecules will decrease.
d. The force of attraction that draws objects to Earth will increase.

Answer 1

Answer:

The force of attraction between the molecules will decrease as the speed of the molecules in a substance increase.

Answer 2

The force of attraction between the molecules decreases as the speed of the molecule in a substance increases.

• As the speed of the molecules in the substance increases then the molecules tend to move apart from each other and the space the substance takes up increases, thereby decreasing the force of attraction between them.
• When the speed of the molecules the substance becomes hot because of the kinetic energy of the molecules.
• The force of attraction that draws object to the Earth decreases due to an increase in speed of molecules.