Question

Use kinetic molecular theory to describe the changes in temperature, particle motion, and kinetic energy when thermal energy is added to solid chocolate. Be sure to explain the process by describing how the particles in chocolate move relative to each other in both the solid and liquid state, as well as what happens during the phase change. Then describe the changes in particle motion, temperature, and kinetic energy when liquid chocolate is poured into a mold.

Please Do a C.E.R

Claim

Evidance

Reasoning

Answer 1

The kinetic molecular theory explains the changes in temperature, particle motion, and kinetic energy when thermal energy is added to solid chocolate. When thermal energy is added, the chocolate melts into a liquid state, increasing the particles' kinetic energy and temperature. Pouring the liquid chocolate into a mold causes it to solidify, resulting in a decrease in temperature and a decrease in particle motion.

Step-by-step explanation:

The kinetic molecular theory helps us understand the changes in temperature, particle motion, and kinetic energy when thermal energy is added to solid chocolate. In the solid state, the particles in chocolate are tightly packed and have low kinetic energy, resulting in a fixed shape. When thermal energy is added, the particles gain kinetic energy, leading to an increase in temperature. As the temperature rises, the particles vibrate more vigorously and eventually break free from their fixed positions, causing the chocolate to melt into a liquid state.

During the phase change from solid to liquid, the temperature remains constant because the energy is being used to break the bonds between the particles. However, the kinetic energy of the particles increases as they gain more freedom of motion.

When liquid chocolate is poured into a mold, it takes the shape of the mold and solidifies. As it cools down, the particles lose kinetic energy and move less vigorously, resulting in a decrease in temperature. The solid chocolate formed in the mold has low kinetic energy and a fixed shape.

Answer 2

Matter is made up of particles that are constantly moving.All particles have energy, but the energy varies depending on the temperature the sample of matter is in. This in turn determines whether the substance exists in the solid, liquid, or gaseous state. Molecules in the solid phase have the least amount of energy, while gas particles have the greatest amount of energy.The temperature of a substance is a measure of the average kinetic energy of the particles.A change in phase may occur when the energy of the particles is changed.There are spaces between particles of matter. The average amount of empty space between molecules gets progressively larger as a sample of matter moves from the solid to the liquid and gas phases.There are attractive forces between atoms/molecules, and these become stronger as the particles move closer together. These attractive forces are called intermolecular forces.