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For the same gas, more density means more molecules per unit volume.

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Q: When density increases the number of molecules in a volume increases decreases varies or stays the same?
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What are the factors affecting mean free path?

Density: As gas density increases, the molecules become closer to each other. Therefore, they are more likely to run into each other, so the mean free path decreases.Increasing the number of molecules or decreasing the volume will cause density to increase. This will decrease the mean free path.Radius of molecule: Increasing the radius of the molecules will decrease the space between them, causing them to run into each other more. Therefore, mean free path decrease.Pressure, Temperature, and other factors that affect density can indirectly affect mean free path.


The pressure of gas decreases with increasing temperature?

If the temperature decreases, the volume is also going to decrease, and if the pressure decreases, the volume is going to increase. So they balance each other out, if they are decreased at the same rate.


What happen to atomic number and mass number of nucleus when it emits alpha particle electron and proton?

It's been awhile for me, but this is how I remember it. It is not convenient for me to look it up right at the moment, so you may want to verify this. Emitting an alpha particle (2 proton 2 neutron), atomic number would decrease by 2 and atomic mass decreases by 4.Electron emission means a neutron turns into a proton and electron, but the electron shoots out. The atomic number increases by 1 and atomic mass stays the same. Proton emission, well it loses a proton. So the atomic number decreases and mass decreases.


What happens to frequency of a wave when the wavelength is decreased and when the wavelength is increased?

When wavelength decreases, frequency increases, and when wavelength increases, frequency decreases. The product of (wavelength) times (frequency) is always the same number ... the speed of the wave. So when one of them changes, the other one must change in the opposite direction in order for their product to remain unchanged.


What happens to the period of a wave when the frequency decreases?

The period and frequency of a wave are inversely related, i.e. the period is the time it takes for wave to go through a cycle, and the frequency is the number of cycles in a certain time period. For example, a wave with a period of 0.5 seconds would have a frequency of 2 per second. Since these properties are the inverse of each other, than they will be opposite when changing. If the period decreases (i.e. gets shorter, faster) than the frequency increases. Or vice versa.

Related questions

When density increases the number of molecules in a volume?

have a good laugh about our president


What is Stomatal Density?

Number of stomata per unit area decreases as CO2 level increases.


When density increases the number of molecules in a volume air?

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How does density change by going down the periodic table?

Atomic radius are increase so density change by going down the periodice table


Why does an increase in the number of molecules increase the pressure?

The great the density the higher the air pessure.


What happens to the bond angle as the number of bonds increases?

Increases


If the number of particles of gas is increased in a container does the gas pressure rise?

Volume = Mass/Density. In a larger container the mass of the gas remains unchanged, the density decreases so the volume increases.


Will there be more ice or water from one ice cube?

If you freeze a given quantity of water, the volume increases. When it melts, the volume decreases. The number of molecules remains the same.


When moving left to right across the periodic table the atomic number increases and the atomic radius?

The atomic radius decreases from left to right and increases from top to bottom


When an α particle is emitted the atomic number 1. decreases by 4. 2. increases by 2. 3. decreases by 2. 4. decreases by 1. 5. increases by 4.?

In this case the atomic number decrease by 2.


How is the current affected by the number of bulbs?

As the number of bulbs in a series circuit increases, the current decreases. As the number of bulbs in a parallel circuit increases, the current increases.


How does a temperature increase cause the rate of a reaction to increase increase?

It increases the kinetic energy of the molecules (APEX)