In a future hydrogen-fuel economy, the cheapest source of H2 will certainly be water. It takes 467 kJ to produce 1 mol of H atoms from water. What is the frequency, wavelength, and minimum energy of a photon that can free an H atom from water? Enter your answers in scientific notation.

Q32. Bioluminescence is the generation of light by an organism (e.g. what a firefly does). Applying what you know about how molecules absorb and utilize the energy from a photon of light - which of the following statements most likely explains bioluminescence?   A. Chemical energy is used to excite an electron in a pigment molecule and light is emitted as the electron decays back down to the ground state. B. It results from the absorption of light at a particular wavelength and emission of that light at a shorter wavelength. C. Photons of light are trapped within a special region of the cell and then released in response to various stimuli. D. ATP is used to convert an electron into a photon of light.

4. Explain why and what makes the spectrum of hydrogen different from the spectrum of helium.

Question 11 of 17 .pdf Learning Consider the four scenarios involving visible light. In scenario A, visible light has a wavelength of 696.1 nm. Determine its frequency, energy per photon, and color. energy per photon: In scenario B, visible light has a frequency of 5.304 x 10¹4 s-¹. Determine its wavelength, energy per photon, and color. energy per photon: In scenario C, visible light is in the middle of the yellow region of the visible spectrum. Estimate its wavelength, DConstitution_of....docx J Air J Pre-Dental Stud.....pdf frequency: The visible light in scenario A is I wavelength: x10 The visible light in scenario B is wavelength: TOOLS ^ Zoom (3).pkg S-1 nm nm Show All X