The reaction Cl_2(g) rightarrow 2Cl(g) is ______. a. Exothermic because breaking

Question

The reaction Cl_2(g) rightarrow 2Cl(g) is ______. a. Exothermic because breaking bonds releases energy. b. Endothermic because breaking bonds releases energy. c. Endothermic because breaking bonds requires energy. d. Exothermic because breaking bonds require energy. Two hydrogen atoms have electrons in the n = 3 energy level. One of the electrons jumps to the n = 2 level, while the other jumps to the n = 1 level. Which property is larger for the first photon? a. Velocity b. Frequency c. Energy d. Wavelength

Explanation / Answer

24.

(c) Endothermic because breaking of bonds requires energy

25.

(d) wave lenght.

n = 3 to n =2 energy gap is smaller than n = 3 to n = 1. Hnece wavelength is more.

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