Sentences with phrase «vibrational energy transfer»

Since the air molecules are at the same temperature, no net exchange of molecular vibrational energy transfer.

Teasing out how plants use light could lead to improvements in renewable energy, like designing solar materials that optimize both electronic and vibrational energy transfer.

Not exact matches

Low temperature plasmas are one of the best media for CO2 decomposition — the split - up of the molecule into oxygen and carbon monoxide — both by direct electron impact, and by transferring electron energy into vibrational excitation.»

So energy gets lost from the vibrational mode and transferred into the general temperature of the surrounding gas.

If your question is how the energy trapped by the atmosphere gets transferred to O2, N2..., the answer is that the excited vibrational state of CO2 is long - lived.

This energy can then be transferred to any other gas molecule in the atmosphere causing it to heat up (that's what heat is — the measure of molecular vibrational energy).

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.

At face value it requires that no energy can be transfered via collisions, i.e. no thermal conductivity, no viscosity, no diffusion... Even for CO2, there is no mechanism for the transfer of energy from rotational / vibrational degrees of freedom to translational motion which has no coupling with a radiation field.

These observations demonstrate as expected that CO2 emits the same power as it absorbs and that there is no net energy transfer between the vibrational modes of CO2 and the translational modes of N2 and O2.

My main point is that my substantial physics training leads me to believe that the main impact of GHGs is vibrational excitation followed by return to the ground state, emitting a photon of the same wavelength but in a random direction, rather than by any significant transfer of internal vibrational energy to thermal energy of surrounding molecules.