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Determining Solution Concentration by an Acid-Base
Chapter , Problem 1PE(choose chapter or problem)
Consider a transition in which the hydrogen atom is excited from n = 1 to n = 00.
(a) What is the end result of this transition? (b) What is the wavelength of light that must be absorbed to accomplish this process? (c) What will occur if light with a shorter wavelength than that in part (b) is used to excite the hydrogen atom? (d) How are the results of parts (b) and (c) related to the plot shown in Exercise 6.88?
In an experiment to study the photoelectric effect, a scientist measures the kinetic energy of ejected electrons as a function of the frequency of radiation hitting a metal surface. She obtains the following plot. The point labeled "vO" corresponds to light with a wavelength of 542 nm. (a) What is the value of VO in $$s^{-1}$$? (b) What is the value of the work function of the metal in units of kJ/mol of ejected electrons? (c) Note that when the frequency of the light is greater than nO, the plot shows a straight line with a nonzero slope. What is the slope of this line segment?
Questions & Answers
QUESTION:
Consider a transition in which the hydrogen atom is excited from n = 1 to n = 00.
(a) What is the end result of this transition? (b) What is the wavelength of light that must be absorbed to accomplish this process? (c) What will occur if light with a shorter wavelength than that in part (b) is used to excite the hydrogen atom? (d) How are the results of parts (b) and (c) related to the plot shown in Exercise 6.88?
In an experiment to study the photoelectric effect, a scientist measures the kinetic energy of ejected electrons as a function of the frequency of radiation hitting a metal surface. She obtains the following plot. The point labeled "vO" corresponds to light with a wavelength of 542 nm. (a) What is the value of VO in $$s^{-1}$$? (b) What is the value of the work function of the metal in units of kJ/mol of ejected electrons? (c) Note that when the frequency of the light is greater than nO, the plot shows a straight line with a nonzero slope. What is the slope of this line segment?
ANSWER:
Step 1 of 5
According to the Bohr's postulate, change in energy when an electron move from one energy level to another energy level is calculated using the following equation:
........................(1)
Here,
E = energy
n = The principal quantum number which represents the orbital position of the electron.
The ground state or the lowest energy state is denoted by , higher energy state or excited state of the electron, the value of can be .