Question

phase changes
fill in the blanks:

1. temperature is the average ______________________ of all the molecules in an object or substance.
2. the higher the kinetic energy, the higher the ______________________________.

answer the following questions:

1. during a change of the state of matter, does the overall temperature change? (while melting, while condensing, while freezing, etc.)

Explanation:

1. Temperature is defined as the average kinetic energy of all the molecules in an object or substance. Kinetic energy is related to the motion of molecules.
2. There is a direct relationship between the kinetic energy of molecules and temperature. As kinetic energy increases, temperature rises.
3. During phase - change processes (like melting, freezing, condensation), the heat energy is used for breaking or forming intermolecular bonds rather than increasing the kinetic energy of molecules (which would change the temperature). So, the temperature remains constant during these phase - change processes.

Answer:

1. kinetic energy
2. temperature
3. No, the overall temperature does not change during a change of the state of matter (while melting, condensing, freezing, etc.)