Sentences with phrase «of diatomic»

Gerhard Herzberg who won a Nobel prize for Chemistry for his work concerned atomic and molecular spectroscopy, and used these techniques to determine the structures of diatomic and polyatomic molecules, was a «dolt and a charlatan»?

I. Spectra of diatomic molecules», New York: Van Nostrand Reinhold, 1950, the classic text on the subject.

The symmetries of those diatomic molecules prevent the absorption (and therefore emission) of infrared.

A result particularly important is the laser cooling of the vibration internal degree of freedom of diatomic molecules that has been obtained during her recent visit at the Laboratoire Aimè Cotton, Orsay [Science 321, 232 (2008), paper selected by Nature Photonics (VOL 2, September 2008, page 519) as Research Highlight and by Science (VOL 322, 10 October 2008, page 203: P.L. Gould «Cold Molecules Beat the Shakes») as Perspectives in Physics.

Under normal conditions hydrogen is a gas consisting of diatomic molecules.

The outcomes of a number of different chemical reactions, such as ionization vs. dissociation of diatomic sodium, have employed this method.

The forces holding diiodine molecules in the crystal are modest, and liquid iodine is not stable at ordinary temperatures and pressures, so that solid iodine sublimes to give a rather large concentration of diatomic molecules in the vapor phase.

Not exact matches

Using «fully reciprocal action» as a criterion would qualify a diatomic molecule like diiodine or, less naively, a set of molecules in chemical equilibrium, as a model of an actual entity.

«It has been established that the nitrates, which is a form of nitrogen, comes from fixation of atmospheric diatomic nitrogen in the atmosphere during meteorite impacts, which is consistent with the data that we obtained through the SAM analyses, so this may be the main source of fixed nitrogen on Mars,» says Javier Martín - Torres.

As a result, only a small fraction of atomic elements, along with a select few diatomic molecules, have been cooled in this manner.

Research published in Nature Communications shows how scientists can measure, in real - time, the time that it takes and the separation distance of two atoms when the bond is broken in the simplest diatomic molecule.

These methods, combined with his definitive studies of perturbations in diatomic molecular spectra, have changed the way we think about molecular complexity

This breaks the diatomic bond of the iodine and each atom retains an electron, giving it an electromagnetic charge.

It's available 24/7 and cheaper than paying a tutor by Spectroscopy - Energy states of real diatomic molecules: For any real molecule, absolute separation of the different motions is seldom encountered since

Spectroscopy - Energy states of real diatomic molecules: For any real molecule, absolute separation of the different motions is seldom encountered since Another dating method using electron spin resonance (ESR)-- also known as electron paramagnetic resonance (EPR)-- is based on the measurement of

Diatomic molecules (like N2 or O2) have stretching modes (with the distance between the two molecules expanding and contracting), but these require a lot of energy (so they absorb only at higher energies.

Diatomic molecules like O2 and N2 are transparent to that radiation and will never fit the definition of a greenhouse gas, no matter that they absorb heat via other means.

One of the ways our world differs from the quantum world shows up in these rotations and vibrations of «diatomic molecules» — molecules made up of two atoms: while human dancers can spin or move back and forth as fast or slow as they wish (within the limits of their physical capabilities), molecules can only vibrate or rotate at specific rates — their motions are «quantized.»

Many molecules are «diatomic» — made up of two atoms.

But diatomic molecules need not be symmetrical — carbon monoxide, the deadly component of car exhaust, is made up of one atom of carbon and one (slightly more massive) atom of oxygen.

Higher up, the composition of the atmosphere changes too — less CO2 and more diatomic species like N2, which have a higher Cp / Cv and therefore higher lapse rates.

Oh yes, there also has to be a change in the dipole moment between the two levels of the transition which explains why homonuclear diatomics (N2, O2, H2) don't absorb in the infrared.

With ideal diatomic gases they are, and worse, the dependency itself depends on the temperature of the gas and the energy required to excite rotations vs vibrations.

is the mean speed of the molecules, related to their temperature but not the same way for monatomic and diatomic ideal gases and hence expressed as a parameter by itself.

Molecules like N2 and O2 (99 % of Earth's atmosphere) can't absorb longwave radiation because identical diatomic molecules don't bend (they are symmetric).

I'll revise it tomorrow for diatomic (after I read up on rotational degrees of freedom; I'm a layman).

Now, there's around four times as much nitrogen in the atmosphere as oxygen and since nitrogen in its diatomic form is difficult to break to form compounds, then it could be said to approximate to an ideal gas (elastic collisions not inelastic), and, oxygen and nitrogen don't combine in the atmosphere but mix, and, oxygen is practically the same weight as nitrogen, and, oxygen has practically the same heat capacity, then, not a bad approximation to the ideal gas of Jelbring's thought experiment.

The pattern of temperature increase with height in the stratosphere is the result of solar heating as ultraviolet radiation in the wavelength range of 0.200 to 0.242 micrometre dissociates diatomic oxygen (O2).

So, Chapman proposed that as soon as one of these oxygen atoms («free radicals») collided with an ordinary diatomic oxygen molecule, they would react together to form a single triatomic ozone molecule (Figure 18).

Similarly, all of the nitrogen is diatomic.

NOTE: Homonuclear diatomic molecules N2 and O2 don't have neither rotational nor vibrational transitions (because of their symmetrical structures) = > no radiative activity in the infrared.

It is an allotrope of oxygen that is much less stable than the diatomic allotrope O 2, breaking down in the lower atmosphere to normal dioxygen.

Assuming air (a diatomic gas with 5 degrees of partitioning), for a given delta - h, the thermal energy will be reduced by 1 / 5th of the energy required to lift molecules by that delta - h.

«We derive a version of the virial theorem that is applicable to diatomic planetary atmospheres that are in approximate thermal equilibrium at moderate temperatures and pressures and are sufficiently thin such that the gravitational acceleration can be considered constant.

The two atoms in these diatomic molecules are bound tightly together and are therefore incapable of absorbing significant infrared radiation.

N2 and O2 are 99 % of the atmosphere and are diatomic.

It reaches its surface temperature of 740 K by using only trace amounts of carbon monoxide (a strongly absorbing greenhouse despite being diatomic, but at different wavelengths from CO2) and sulfur dioxide.

The quantum theory of molecular vibrations says there should be no (significant) contributions from diatomic N2 in the IR range.

Most of the gas in our atmosphere is diatomic O - O or N - N.