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In a series of experiments, a gas of exotic molecules containing exactly one electron each is investigated....

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Physics

In a series of experiments, a gas of exotic molecules containingexactly one electron

each is investigated. It is found that:

• When the gas is cold (so all the molecules are in their groundstates) and illuminated

with light, it absorbs strongly at wavelengths 103.40nm,137.87nm and 248.16nm.

• When the gas is cold and illuminated with light of shortwavelength, the electrons are

ejected from the molecules as long as the wavelengths is lessthan 88.63nm.

• When the gas is heated, it emits light with 6 differentwavelengths.

(a) If we chose to set the potential energy outside of themolecule to be zero, how far

below zero energy is the ground state of the molecule?

(b) How many discrete energy level does the molecule have?

(c) What wavelengths of light does the heated gas emit?

(d) A free electron with kinetic energy of 2eV is captured bythe atom (which is originally ionized) and goes directly into theground state. What is the wavelength of the emitted photon?

Hint: Electrons can jump from one energy level to another byemitting/absorbing a photon whose energy is equal to the differencein energies between the two states.

Answer & Explanation Solved by verified expert
4.1 Ratings (634 Votes)
energy of photon E hchc 1240 evnmenergy pf the photons absorbed by the molecules8863 nm E 12408863 13991 ev electron is knockedout1034 nm E 12401034 11992 ev13787nm E 8994 ev24816 nm E 4997 eva 8863    See Answer
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