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68 solutions

The Particle Nature of Light

Q. 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 in water? Enter your answer in scientific notation.

Solved • Nov 13, 2019

The Particle Nature of Light

Q. Find the longest wavelengths of light that can cleave the bonds in elemental nitrogen, oxygen, and fluorine. The average bond energy of N-N bond is 945 kJ/mol, oxygen is 498 kJ/mol, and F-F is 159 kJ/mol. Give your answer in scientific notation.

Solved • Nov 13, 2019

The Particle Nature of Light

Q. Rank the following colors of visible light from the highest to the lowest energy, including their estimated energy (show your calculations): Blue, Red, Green, Violet

Solved • Oct 30, 2019

The Particle Nature of Light

Q. The first ionization energy for carbon is 1.80 x 10 ^ -21 kJ per atom. What wavelength of light would supply photons with this energy? A) 111 cm B) 111 nm C) 241 nm D) 1.11 nm E) 252 pm

Solved • Oct 29, 2019

The Particle Nature of Light

Q. The first ionization energy for carbon is 1.80 x 10 ^ -21 kJ per atom. What wavelength of light would supply photons with this energy? A) 111 cm B) 111 nm C) 241 nm D) 1.11 nm E) 252 pm

Solved • Oct 29, 2019

The Particle Nature of Light

Q. The energy difference between the 5d and the 6s sublevels in gold accounts for its color. If this energy difference is about 2.7 eV (electron volt; 1 eV = 1.602 ×10−19 J), calculate the wavelength of light absorbed in the transition of an electron from the 5d subshell to the 6s subshell. Round the answer to the correct number of significant figures.

Solved • Oct 27, 2019

The Particle Nature of Light

Q. Use the following figure to find the longest wavelength of electromagnetic (EM) radiation that can ionize a Period 3 atom. Give your answer in scientific notation.

Solved • Oct 27, 2019