UPSC Combined Geo-Scientist, Mains · 2016 · Mains Paper II
Q12(a)(i). Energy absorbed by HI
Question
HI absorbs radiation stated in the paper as "wavelength 2309.5 cm⁻¹. Calculate the accompanying internal-energy change of one molecule in joules.
Answer in brief
ΔE=4.59×10⁻²⁰ J per molecule.
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CoversEnergy absorbed by HIVibrational spectroscopy
All parts of Question 12
- 12(a)(i) Energy absorbed by HI3 marks
- 12(a)(ii) Counting normal modes4 marks
- 12(a)(iii) Microwave activity3 marks
- 12(b)(i) Raman-scattering lines5 marks
- 12(b)(ii) Carbon dioxide normal modes5 marks