Which statement explains the molecular changes that occur in an enclosed gas as the pressure increases and the temperature is held constant?

Question

A. An increase in pressure causes particles to move closer together, increasing the volume
B. An increase in pressure causes particles to move father apart, decreasing the volume
C. An increase in pressure causes particles to move closer together, decreasing the volume
D. An increase in pressure causes particles to move farther apart, increasing the volume?

Answer 1

The correct statement is:

C. An increase in pressure causes particles to move closer together, decreasing the volume.

When pressure on a gas increases while maintaining a constant temperature, the gas particles are forced closer together, which results in a decrease in volume according to Boyle's Law. This law states that for a given mass of gas at constant temperature, the pressure of the gas is inversely proportional to its volume.