Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents

Your guest activity stays on this device

Sign in to save progress →
Sign in

Spectroscopy question

2018 · Q58
Guest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
  1. PYQ Library
  2. /IIT JAM
  3. /Chemistry
  4. /Spectroscopy
  5. /2018 · Q58

Spectroscopy question

2018 · Q58

IIT JAMChemistrySpectroscopyNumerical+2 / −0
For H 2_22​ molecule, the fundamental vibrational frequency (υˉe\bar{\upsilon}_eυˉe​) can be taken as 4400 cm −1^{-1}−1. The zero-point energy of the molecule is ‾\underline{\hspace{2cm}}​ kJ mol −1^{-1}−1 (rounded up to two decimal places). [h = 6.6 ×\times× 10 −34^{-34}−34 J s, c = 3 ×\times× 10 8^88 m s −1^{-1}−1, NAN_ANA​ = 6 ×\times× 10 23^{23}23 mol −1^{-1}−1]
Numerical answer
View written solutionFree

Correct answer: 25.80, 26.40

PreviousNext

More from Spectroscopy

  • IR active molecule(s) is/are2017 · Multiple correct
  • The number of normal modes of vibration in naphthalene is2017 · MCQ
  • The correct order of the fundamental vibrational frequencies of the following diatomic molecules is2015 · MCQ
  • The magnetic field (in Tesla) required for flipping a 1 H nucleus in an NMR spectrometer operating at 400 MHz is ​ [Given: γ=2.67×108 T −1 s −1, π=3.14]2015 · Numerical
  • The set of asymmetric top molecules is2025 · MCQ
  • The resonance frequency of ¹H nuclei is 300 MHz in an NMR spectrometer. If the spectrometer is operated at 12 T magnetic field, the resonance frequency (in MHz) of the same ¹H nuclei is ​.2025 · Numerical
  • The first rotational absorption of ¹²C¹⁶O molecule is observed at 3.84 cm⁻¹. If an isotopic substitution is made with ¹⁸O in the molecule, the frequency (in cm⁻¹) of first rotational absorption is ​.2025 · Numerical
  • If 1 M of a dye in water transmits 50% of incident light at 400 nm, then 2 M of the dye in water transmits ​ % of the incident light at 400 nm. (rounded off to the nearest integer) [Given: Both experiments are…2024 · Numerical