# Reason for: Temperature is proportional to atomic motio

• mooncrater
In summary, according to the physicist, there is a correlation between an increased temperature and an increased speed of the gas molecules.
mooncrater
Yeah... I know many of you people might be laughing but still I don't understand how can we simply reach the conclusion that increasing temperature increases the atomic motion.
Consider this :
When we push something, it moves (don't over think about this one) when we apply torque on something, it rotates, though it's generally accepted but still its absurd to me that increasing temperature increases the atomic motion.
One may say that:
" By conservation of energy, we can say that the energy supplied by the increase in temperature equals to the kinetic energy of the particles "
But this doesn't just satisfy me. Does anyone else has another explanation?

mooncrater said:
One may say that:
" By conservation of energy, we can say that the energy supplied by the increase in temperature equals to the kinetic energy of the particles "
But this doesn't just satisfy me. Does anyone else has another explanation?
Which part of this explanation bothers you ?

I have an explanation but you have to start with matter consisting of three little particles connected by springs and then think of temperature in a purely analogous manner of how fast those particles bounce on the springs.

There's nothing laughable about your question. One's understanding of temperature advances in stages as one studies Physics. Are you comfortable with (i) the experimental fact that (for a fixed mass of gas in a container of constant volume) the gas pressure increases with temperature (as read by an ordinary thermometer) (ii) the kinetic theory, including the idea that gas pressure is caused by the impact of gas molecules with the container wall? If so, it's difficult to avoid the inference that an increased temperature is correlated with increased speed (and therefore increased mean kinetic energy) of the gas molecules. Note that I don't say that the rise in temperature causes the gas molecules to have increased mean KE, just that there is a corrrelation.

Has this helped?

Last edited:
mooncrater

## 1. What is the relationship between temperature and atomic motion?

The reason for temperature being proportional to atomic motion is due to the kinetic theory of gases. This theory states that the average kinetic energy of gas particles is directly related to the temperature of the gas. Therefore, as the temperature increases, the average speed of the gas particles increases, leading to faster atomic motion.

## 2. How does temperature affect atomic motion?

As mentioned before, an increase in temperature leads to an increase in the average kinetic energy of gas particles. This results in faster atomic motion, where the atoms and molecules vibrate and move more vigorously. Conversely, a decrease in temperature leads to a decrease in atomic motion, as the particles have less energy to move around.

## 3. Why is atomic motion important in understanding temperature?

Atomic motion is important in understanding temperature because temperature is a measure of the average kinetic energy of particles in a substance. Since atomic motion is directly related to the kinetic energy of particles, it is a crucial factor in determining the temperature of a substance.

## 4. How is temperature measured in relation to atomic motion?

Temperature is typically measured using a thermometer, which is a device that uses the expansion or contraction of a liquid to indicate the temperature. In terms of atomic motion, temperature can also be measured indirectly by observing the changes in pressure or volume of a gas, as these properties are affected by atomic motion.

## 5. Can temperature and atomic motion ever be completely separated?

No, temperature and atomic motion cannot be completely separated. As long as there is any movement or vibration of atoms and molecules, there will be a corresponding temperature. However, at extremely low temperatures, the atomic motion may become very slow and almost imperceptible, but it is still present and can be measured. Therefore, temperature and atomic motion are always interrelated.

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