The fundamental C–O stretching mode in CO is observed at

PHYSICS · Single correct · ISC · Chemistry · Physics · Electromagnetic Waves

Problem

The fundamental C–O stretching mode in CO is observed at 2.143×103 cm−12.143\times10^{3}\,\text{cm}^{-1}. Which of the following is closest to the energy of one mole of photons at this wavenumber, and in which region of the electromagnetic spectrum does this absorption occur? (a) approximately 0.26 kJ mol−10.26\,\text{kJ mol}^{-1}; microwave region (b) approximately 260 kJ mol−1260\,\text{kJ mol}^{-1}; visible region (c) approximately 26 kJ mol−126\,\text{kJ mol}^{-1}; infrared region (d) approximately 2.6×103 kJ mol−12.6\times10^{3}\,\text{kJ mol}^{-1}; ultraviolet region

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