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.