jameslinimk
22.10.2019 •
Chemistry
N2 molecules absorb ultraviolet light but not visible light. i2 molecules absorb both visible and ultraviolet light. which of the following statements explains the observations?
more energy is required to make n2 molecules vibrate than is required to make i2 molecules vibrate.
a
more energy is required to remove an electron from an i2 molecule than is required to remove an electron from a n2 molecule.
b
visible light does not produce transitions between electronic energy levels in the n2 molecule but does produce transitions in the i2 molecule.
c
the molecular mass of i2 is greater than the molecular mass of n2.
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Ответ:
The statement that explains the observations is C. Visible light does not produce transitions between electronic energy levels in the N2 molecule but does produce transitions in the I2 molecule.
It should be noted that the abortion of light by molecules will lead to the production of electronic transitions from the steady level to the energy of absorbed light which is the higher level.Since the nitrogen molecules absorb ultraviolet light but not visible light and the Iodine molecules absorb both visible and ultraviolet light, then the visible light will not produce transitions between electronic energy levels in the nitrogen molecule but does produce transitions in the I2 molecule.In conclusion, the correct option is C.
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Ответ:
Cr2S3
Explanation: