KMT

How do particles in a liquid behave?

• They move fast enough to break attractions and push other particles out of the way.

• They remain stationary and do not move at all.

• They move slowly and stay close together without interacting.

• They move in a fixed pattern and do not change positions.

What keeps particles in a solid trapped in the same small volume?

• Weak attractions between particles.

• Strong attractions between particles.

• High temperature of the particles.

• Low kinetic energy of the particles.

How does the density of a gas compare to that of a liquid or solid?

• Gases are generally more dense than liquids and solids.

• Gases have the same density as liquids and solids.

• Gases are generally less dense than liquids and solids due to the greater distance between particles.

• Gases are denser than solids but less dense than liquids.

How does the concept of diffusion relate to gas behavior?

• Diffusion is the process by which gas particles spread out and mix due to their constant motion.

• Diffusion occurs only when gases are cooled to low temperatures.

• Diffusion is the process of gas particles being compressed into a smaller volume.

• Diffusion refers to the chemical reaction between different gases.

What role do intermolecular forces play in the states of matter?

• They determine the temperature of the substance.

• They determine the arrangement and movement of particles in solids, liquids, and gases.

• They have no effect on the states of matter.

• They only affect the state of gases.

What is the difference between the movement of particles in solids, liquids, and gases?

• Particles in solids vibrate in place, in liquids they move around each other, and in gases they move freely.

• Particles in solids move freely, in liquids they vibrate in place, and in gases they are tightly packed.

• Particles in solids and liquids move freely, while in gases they vibrate in place.

• Particles in solids are tightly packed, in liquids they are loosely packed, and in gases they are tightly packed.

What happens to the energy of particles during a phase change?

• Energy is absorbed or released, affecting the movement and arrangement of particles.

• Energy remains constant, and particles do not change their arrangement.

• Energy is only released, causing particles to move closer together.

• Energy is only absorbed, causing particles to move further apart.

What happens to the direction and velocity of gas particles when they collide?

• They change direction and velocity.

• They remain unchanged.

• They only change direction.

• They only change velocity.

What is the significance of particle collisions in gases?

• Collisions between gas particles are elastic, meaning they conserve kinetic energy and momentum.

• Collisions lead to the formation of new particles.

• Collisions result in the loss of energy and momentum.

• Collisions cause gas particles to become liquid.

What occurs when a solid becomes a liquid?

• The increased movement of particles pushes them completely out of position, collapsing the organized structure.

• The particles remain in a fixed position but vibrate more rapidly.

• The solid expands without changing its state.

• The particles lose all energy and become inactive.