In a vibrational-rotational spectroscopy the total energy is the sum of the energies coming from the vibration and rotation (E = E + E₁). Selection rule suggests that for transition to occur Av = ±1 and Al = ±1. At room temperature, it is assumed that the lowest vibrational state is populated and the energy can only travel upwards due to lack of population of upper vibrational states thus Av = +1. What would be the energy of a line for R, P and Q-branch if a.) Al = +1, b.) Al = -1 and c.) Al = 0 respectively.
In a vibrational-rotational spectroscopy the total energy is the sum of the energies coming from the vibration and rotation (E = E + E₁). Selection rule suggests that for transition to occur Av = ±1 and Al = ±1. At room temperature, it is assumed that the lowest vibrational state is populated and the energy can only travel upwards due to lack of population of upper vibrational states thus Av = +1. What would be the energy of a line for R, P and Q-branch if a.) Al = +1, b.) Al = -1 and c.) Al = 0 respectively.
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![In a vibrational-rotational spectroscopy the
total energy is the sum of the energies
coming from the vibration and rotation (E =
E + E₁). Selection rule suggests that for
transition to occur Av = ±1 and Al = ±1. At
room temperature, it is assumed that the
lowest vibrational state is populated and
the energy can only travel upwards due to
lack of population of upper vibrational
states thus Av = +1. What would be the
energy of a line for R, P and Q-branch if a.)
Al = +1, b.) Al = -1 and c.) Al = 0
respectively.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2243f1f6-e9c1-4846-891f-0a792247e562%2F620a3e23-8310-4a00-ae30-41472619d2ce%2Ffywsgk_processed.jpeg&w=3840&q=75)
Transcribed Image Text:In a vibrational-rotational spectroscopy the
total energy is the sum of the energies
coming from the vibration and rotation (E =
E + E₁). Selection rule suggests that for
transition to occur Av = ±1 and Al = ±1. At
room temperature, it is assumed that the
lowest vibrational state is populated and
the energy can only travel upwards due to
lack of population of upper vibrational
states thus Av = +1. What would be the
energy of a line for R, P and Q-branch if a.)
Al = +1, b.) Al = -1 and c.) Al = 0
respectively.
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