Chemisrty Chapter 6 Assignment

Assignment Chapter 7
Concept Explorations
7.23. Light, Energy, and the Hydrogen Atom a. Which has the greater wavelength, blue light or red light? Red light radiates close to 700nm, blue light closer to 450nm, so 700 is greater than blue 450.
Red light
b. How do the frequencies of blue light and red light compare? Because red light has a longer wavelength than blue light, there are less oscillations for red light which makes red light have a lower frequency than blue light.frequency=waves peer/wavelength , so when wavelength increases, frequency will decrease.
c. How does the energy of blue light compare with that of red light? Blue light has more energy than red light, when the wavelength of light is shorter the energy of the wave becomes higher
d. Does blue light have a greater speed than red light?
No. All light travels at the same speed but blue light has a shorter wavelength than red light
e. How does the energy of three photons from a blue light source compare with the energy of one photon of blue light from the same source? How does the energy of two photons corresponding to a wavelength of 451 nm (blue light) compare with the energy of three photons corresponding to a wavelength of 704 nm (red light)? The energy of the three photons has three times the energy of the one photon, the energy of n photons of light is E=nh, E=nhc/ (2)(704nm)1.04 (3)(451nm). The energy of two photons corresponding to a wavelength of 451 blue light , is 1.04 times the energy of three photons corresponding to wavelength 704nm red light.
f. A hydrogen atom with an electron in its ground state interacts with a photon of light with a wavelength of 1.22 × 10−6m. Could the electron make a transition from the ground state to a higher energy level? If it does make a transition, indicate which one. If no transition can occur, explain. No transition occurs. Because