Sentences with phrase «of kinetic energy of the molecules»

Temperature is a measure of the kinetic energy of the molecules.

I insisted several times now that the height * dependence * of the kinetic energy of each molecule is a * premise * of our (Maxwell's, FOMD's) argument.

It means that energy transfer is dominated by collision and the distribution of kinetic energy of the molecules follows the Maxwell - Boltzmann distribution.

Not exact matches

The remaining molecules of lower kinetic energy are counted.

In both cases kinetic energy flows through matter without permanently displacing the molecules in the matter itself — instead, it puts the matter through phases of compression (where the molecules get pushed together) and rarefaction (where the molecules spread apart).

By using as sources supersonic jets of hydrogen or helium containing small concentrations of heavier molecules we have been able to obtain molecular beams with kinetic energies of the heavy molecules well into the range above I electron volt.

Then they used the speed of sound measurement to calculate the average speed of the argon molecules and hence the average amount of kinetic energy that they had — from this they were able to calculate the Boltzmann constant with an extremely high accuracy.

The suggested method is to use the Boltzmann constant, which is a measure of the relationship between the kinetic energy of molecules and temperature.

Also, as the faster - moving molecules escape, the remaining molecules have lower average kinetic energy, and the temperature of the liquid thus decreases.

«With soft - landing techniques, chemists can control — very precisely — the location, the makeup, and the kinetic energy of the molecules that we deposit,» said Laskin, the PNNL physical chemist who led the writing of the review article.

When neutron particles collide with hydrogen and oxygen particles, some of the kinetic energy from the neutron is transferred to the water molecule, much like a cue ball hitting another billiard ball of the same size.

When an icy impact occurred, the impactor's kinetic energy became heat energy, instantly melted some ice, gouged out a crater, and kicked up into Mars» thin atmosphere large amounts of debris mixed with water (liquid, ice crystals, and vapor)-- and complex organic molecules that obviously came recently from life.127 Then, the dirt and salt - water mixture settled back to the surface in vast layers of thin sheets — strata — especially around the crater.

«Only large groups of colliding molecules have a temperature — which is proportional to their mean kinetic energy.

Once this mixture of fuel droplets, and air is inside the cylinder, and a spark occurs do the air molecules gain kinetic energy, then collide into the atomised fuel, and the individual fuel molecules break apart thus turning fuel from a liquid to a gas (vaporisation), then those fuel molecules combines with the air molecule, then combustion occurs?

(The temperature of air depends on the average kinetic energy of its molecules.)

This kinetic energy is made up of not only the vibrational energy, but also the rotational energy and the classical kinetic energy of moving molecules.

Collison of an excited greenhouse gas molecule will normally result in the deactivation of the greenhouse gas molecule and an increase in the kinetic energy of the non-greenhouse gas molecule.

Almost immediately (nanoseconds) they relax from their excited state by either 1) emitting that energy as a new photon, some of which will continue up towards space, some of which will go back downward to be reabsorbed, thus keeping the energy in the atmosphere longer, or 2) by colliding with another gas molecule, most likely an O2 (oxygen) or N2 (nitrogen) molecule since they make up over 98 % of the atmosphere, thereby converting the extra vibrational energy into kinetic energy by transferring it to the other gas molecule, which will then collide with other molecules, and so on, making the air warmer.

i.e. every molecule in a gas is capable of radiating, if and only if, it has aquired sufficient kinetic energy, (Maxwell - Boltzmann distribution), and those molecules are evenly distributed through the volume of the gas.

The energy content of such an atmosphere would be skewed towards the top with the molecules at the boundary of space containing both a full load of kinetic energy AND a similar amount of potential energy whereas those at the bottom would have kinetic energy only.

This is the direct and powerful thermal infrared, longwave infrared, actually capable of doing the cooking, of making the whole molecules of matter vibrate which is also heat, kinetic energy.

Since reducing pressure with height around a sphere allows more space between molecules and between the molecules and the ground the molecules cool due to conversion of kinetic energy to potential energy.

The bulk of collisions change the kinetic energy of the molecules.

As I understand the Ideal Gas Law, the temperature one measures depends on the density of the gas as less density means less collisions of individual molecules with the measuring apparatus, or IOW, less kinetic energy per volume unit of gas.

It can transfer kinetic energy to another molecule though, and through random collisions a small number of the molecules will reach the necessary energy to radiate.

The water vapor evaporated from the surface taking with it latent heat of evaporation (the molecules» kinetic energy) when those water vapor molecules reach the condensation level they change state — and release energy — then again when they freeze they release energy.

Unlike Miskolczi's misapplication of the virial theorem to air molecules, the Moon undergoes no significantly orbit - altering collisions, whence the Moon's kinetic energy decreases by exactly half the potential energy increase, easily confirmed by other ways of computing the same thing.

I would equally interested fo people who believe «global warming» affirming clearly that they don't believe that an excited CO2 molecule increases the kinetic energy of atmospheric gases in any significant degree.

@Web: The problem with your argument is that it presumes that there is not a statistical distribution of kinetic energies among the top-most water molecules, such that a certain percentage of them are within a single photon's energy of the heat of vaporization.

(3) Isothermal conditions would require creation of energy every time a molecule moved upwards, supposedly retaining kinetic energy whilst gaining potential energy.

I think Geoff Wood's argument is that the molecules have energy which consists of kinetic energy and potential energy.

It takes the power of real heat to heat matter, to move the molecules of matter into vibration, kinetic energy which is heat.

The net flow of energy is from a region of high mean kinetic energy to a region of low kinetic energy, but a population or region of molecules radiates in all directions.

In the real world it takes heat from the Sun to raise the temperature of matter, to heat it, to move the molecules of matter into vibration, which is heat, kinetic energy.

And this energy stored by the kinetic energy of the gas molecules of the atmosphere.

Within a volume of the atmosphere, none of the molecules are exactly at the mean kinetic energy, all are below or above average by at least a small amount, and some are above or below average by large amounts.

Then, the temperature is determined by the kinetic energy of the molecules.

It can be studied by semi-classical statistical mechanics and the result is that the velocities of molecules (translational kinetic energy) within a volume of gas in equilibrium are distributed according to the Maxwell - Boltzmann distribution.

Perhaps such collisions can only cause kinetic energy exchanges and perhaps trigger or assist in the release or absorption of photons characteristic of the molecules involved in the collision.

The kinetic energy of molecules — heat — is transferred to other molecules in the atmosphere heating the atmosphere.

These Photons have a separate existence to the molecules about them & don't present any indication of the Kinetic Energy (KE) of those surrounding molecules, whose KE is presented as the VELOCITY of the molecular unit and is measured in style as «Temperature» (or as Pressure also).

A collision where the kinetic energy is split between two (or more) molecules, leading to a decay in number of molecules at N2 (+) or near N2 (+) kinetic energy levels.

The «temperature» of a gas (if you must use a compound term) is a measure of the total kinetic energy of the molecules in the volume of gas being measured.

That case nonetheless remains relevant, because it illustrates by exaggeration something that remains true independently of how large the number of molecules gets: the mean molecular translational kinetic energy decreases with height, and it does so at a rate that is finite and non-zero, albeit negligible for most purposes.

But a point you raised gnawed at me, and I tentatively reached a result that is an argument for your point of view: if you start with our atmospheric pressure at ground level, the difference in kinetic energy Velasco et al. specify for an altitude difference of, say, 10 km would not be measurable with a time uncertainty less than a second even in principle unless the gas - column width is less than something on the order of 100 nitrogen - molecule diameters across.

The problem you are struggling to understand is that there is a Bolztman distribution of kinetic energy such that you can not obtain a reliable temperature for an ensemble by measuring one individual molecule's temperature.

The kinetic energy of the in the the molecules at the top of the box and the molecules at the bottom of the box are different, in the additive fashion of kinetic energy plus potential energy equals a constant total energy.

Over a sufficiently long period of time, it follows from the equipartition theorem and other principles of statistical mechanics that every molecule in a gas will have the same average kinetic energy, the same average potential energy, and the same total energy, as any other molecule.

Visible light is not thermal energy on the move, it can not heat water as thermal infrared can heat water, water is a transparent medium for it, it works on electronic transition level of effect on meeting matter, AND not vibrational resonance, i.e. moving the whole molecule, kinetic energy, which is the process of thermal infrared, etc. «Climate» science mangles all of these by giving the properties of one to another and then claiming visible light can do what it isn't physically possible for it to do.

As implausible as it might seem at first, the average kinetic energy of the molecules that make it 17 km will be the same as the average KE of the molecules at the bottom.