A. Dalgarno, in Chemistry in the interstellar medium, Frontiers of Astrophysics, E.H. Avrett (ed.), Harvard University Press,

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A. Dalgarno, in Chemistry in the interstellar medium, Frontiers of Astrophysics, E.H. Avrett (ed.), Harvard University Press, Cambridge (1976), notes that although both CH and CN spectra show up strongly in the interstellar medium in the constellation Ophiuchus, the CN spectrum has become the standard for the determination of the temperature of the cosmic microwave background radiation. Demonstrate through a calculation why CH would not be as useful for this purpose as CN. The rotational constant B0 for CH is 14.190 cm−1.

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Physical Chemistry

ISBN: 9780716787594

8th Edition

Authors: Peter Atkins, Julio De Paula

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