Question

How is the average amount of motion of atoms and molecules of a substance measured? A. time B. mass C. distance D. temperature

Answer 1

Answer:

The average amount of motion of atoms and molecules of a substance measured by:

D. Temperature

Explanation:

• The molecules of a substance are always in motion.
• The motion is due to the energy present in them.
• The energy present in these molecules is the kinetic energy.
• This kinetic energy is measured by calculating the total  heat energy of the substance.
• More the heat energy greater is the molecular motion.
• Since heat can be measured by measuring the temperature.
• Measuring the temperature of a body will give the idea of amount of heat present in the body.
• Thus , on measuring the temperature we can measure the average amount of motion in atoms and molecules of a substance.