Sentences with phrase «molecules bumping into each other»
4 Transfer of Energy Conduction — transfer by molecules bumping into each other.
http://slideplayer.com/ Not exact matches
Deep underground, uranium atoms in rocks undergo radioactive decay, sending off alpha particles — two protons and two neutrons — that can bump into other molecules and change them.
MMer: A chemist is used to reactions between molecules that bump into each other randomly.
Most of the time it gets rid of that energy by bumping into another molecule, converting that internal energy back into translational motion of the molecules with respect to each other.
When one molecule with high vibrational energy bumps into another molecule (even one without a vibrational mode) some of that vibration can go into kicking the other molecule into faster motion or higher rotation.
The faster the atoms / molecules move, and bump into each other, the higher the pressure / temperature.
But the particles will bump into each other and the rotational energy will kick the molecules around until the energy is evenly distributed in the 5 degrees of freedom.
4) As I understand it, the ~ 15μm radiation from the Surface to the Atmosphere is absorbed by H2O and CO2 molecules which, when excited, bump into nitrogen and oxygen and other air molecules, and heat the air.
Ira — regarding your summary comment 4) at May 8, 2011 at 7:51 pm my comment — NO, the atmosphere does NOT emit LWIR across a distribution of wavelengths like a blackbody, see my earlier comment at Dave in Delaware says: May 8, 2011 at 7:00 am Ira Glickstein, PhD says: «4) As I understand it, the ~ 15μm radiation from the Surface to the Atmosphere is absorbed by H2O and CO2 molecules which, when excited, bump into nitrogen and oxygen and other air molecules, and heat the air.
The heated gas molecules would bump into other air molecules and warm them, and like any material above absolute zero, the Atmosphere would emit radiation at a variety of long - wave wavelengths in random directions, some of which would be absorbed by the surface of the planet, warming it further.