Multiple ChoiceWhat is the energy, in kilojoules, of one mole of photons (an einstein) with a frequency of 8.23 × 10^{15} Hz? (Planck's constant, h = 6.626 × 10^{-34} J·s; Avogadro's number, N_A = 6.022 × 10^{23} mol^{-1})123views
Multiple ChoiceAssuming that radiation with λ=15.0 cm is used, and that all the energy is converted to heat, with 4.184 J needed to raise the temperature of 1.00 g of water by 1.00 °C, how many photons are necessary to raise the temperature of a 300 g sample of water by 1.00 °C?715views
Multiple ChoiceA photon of light emitted by a heated atom has an energy of 3.285 x 10^-19 J. What is the frequency of this photon in Hz?827views
Multiple ChoiceWhat is the energy of a single photon of light that has a frequency of 9.28 \(\times\) 10^{22} \(\text{ Hz}\)?105views
Multiple ChoiceWhich of the following best describes the relationship between the energy (E) of a photon and its frequency (ν)?105views
Multiple ChoiceWhen a hydrogen atom absorbs electromagnetic radiation (light), which of the following occurs?92views
Multiple ChoiceHow much energy is contained in one mole of X-ray photons with a wavelength of 0.280 nm in kJ/mol?747views
Multiple ChoiceConvert 4.5 x 10^-15 J/photon to wavelength in nm. Which of the following is the correct wavelength?678views
Multiple ChoiceWhich of the following colors of visible light corresponds to the highest energy?91views
Multiple ChoiceWhich of the following electronic transitions in a hydrogen atom represents the emission of a photon with the largest energy?92views