Question

what happens to the temperature and heat energy of a substance during a change of state?​

Answer 1

Step-by-step explanation:

When thermal energy is added to a substance, its temperature increases, which can change its state from solid to liquid (melting), liquid to gas (vaporization), or solid to gas (sublimation). ... When the pressure exerted on a substance increases, it can cause the substance to condense.

Answer 2

Matter can change from one state to another when thermal (heat) energy is absorbed or released. This change is known as change of state.

Step-by-step explanation:

• Energy Simply stated, energy is the ability to do work or cause change. The energy of motion is called kinetic energy.

• Particles within matter are in constant motion.

• The amount of motion of these particles depends on the kinetic energy they possess.

• Particles with more kinetic energy move faster and farther apart.

• Particles with less energy move more slowly and stay closer together.

• The total kinetic energy of all the particles in a sample of matter is called thermal energy.  

• Thermal energy, an extensive property, depends on the number of particles in a substance as well as the amount of energy each particle has.

• If either the number of particles or the amount of energy in each particle changes, the thermal energy of the sample changes.
• With identically sized samples, the warmer substance has the greater thermal energy.

• For example, the particles of hot water from the hot spring have more thermal energy than the particles of snow on the surrounding ground.