Multiple ChoiceCalculate the energy (in nJ) of a photon emitted by a mercury lamp with a frequency of 6.88 x 1014 Hz.1504views5rank3comments
Multiple ChoiceA light ray has a wavelength that is 835 µm contains 6.32 x 10-3 J of energy. How many photons does this light ray have?1129views4rank4comments
Multiple ChoiceHow much energy (in kJ) do 4.50 moles of photons contain at a wavelength of 705 nm?1041views3rank1comments
Open QuestionWhat is the longest wavelength of radiation with enough energy to break carbon-carbon bonds?292views
Open QuestionHospital X-ray generators emit X-rays with wavelength of about 15.0 nanometers (nm), where 1nm = 10−9 m. What is the energy of a photon of the X-rays?352views
Open QuestionCalculate the energy of the violet light emitted by a hydrogen atom with a wavelength of 410.1 nm.336views
Open QuestionA bright violet line occurs at 435.8 nm in the emission spectrum of mercury vapor. what amount of energy, in joules, must be released by an electron in a mercury atom to produce a photon of this light?361views
Open QuestionCalculate the energy of the orange light emitted, per photon, by a neon sign with a frequency of 4.89 × 1014 Hz.298views
Open QuestionCalculate the energy of the green light emitted, per photon, by a mercury lamp with a frequency of 5.49 × 1014 Hz.380views
Open QuestionCalculate the energy of a photon of electromagnetic radiation at each of the following frequencies.378views1rank
Open QuestionWhat is the longest wavelength of radiation that possesses the necessary energy to break the bond?374views
Open QuestionCalculate the energy of a photon of electromagnetic radiation at each of the following wavelengths.543views
Open QuestionA green leaf has a surface area of 2.50 cm². If solar radiation is 1000 W/m², how many photons strike the leaf every second? Assume three significant figures and an average wavelength of 504 nm for solar radiation.
Open QuestionThe iodine molecule can be photodissociated (broken apart with light) into iodine atoms in the gas phase with light of wavelengths shorter than about 792 nm. A 100.0-mL glass tube contains 55.7 mtorr of gaseous iodine at 25.0 °C. What is the minimum amount of light energy that must be absorbed by the iodine in the tube to dissociate 15.0% of the molecules?
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