Energy required for excitation of electron in 1 mole H atom from ground state to 2nd…

CHEMISTRY · Subjective · CBSE · Chemistry · Structure of Atom · Structure of Atom

Problem

Energy required for excitation of electron in 1 mole H atom from ground state to 2nd excited state is 2.67 times lesser than dissociation energy per mole of H2(g)\text{H}_2(g) . Calculate the amount of energy needed to excite each H atom of H2(g)\text{H}_2(g) confined in 1.0 litre at 27∘C27^\circ\text{C} and 1 bar pressure. R=0.083 bar litre K−1 mol−1R = 0.083 \text{ bar litre K}^{-1} \text{ mol}^{-1} ; RH=1.1×107 m−1R_H = 1.1 \times 10^7 \text{ m}^{-1} .

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