The two nuclei in the carbon monoxide (CO) molecules are 0.1128 nm apart. The mass of the carbon atom is 1.993x10-26 kg. The mass of the oxygen atom is 2.656x10-26 kg. What is the first excited rotational energy level for the CO molecule? (Give the your answer in meV.)
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The two nuclei in the carbon monoxide (CO) molecules are 0.1128 nm apart.
The mass of the carbon atom is 1.993x10-26 kg.
The mass of the oxygen atom is 2.656x10-26 kg. What is the first excited rotational energy level for the CO molecule? (Give the your answer in meV.)
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- Helium was first discovered when astronomers viewed the spectrum from the Sun and could not associate absorption lines associated with any terrestrial element. One wavelength that was strongly absorbed was 587.5 nm (1 nm = 1.0(10)9 m). What is the energy associated with this wavelength of light? O 1.06 ev (or 1.70(10)19 -20 0.472 ev (or 7.57(10)2º ) O 2.11 ev (or 3.38 (10)19 O 0.943 ev (or 1.51(10)19)a. The electron of a hydrogen atom is excited into a higher energy level from a lower energy level. A short time later the electron relaxes down to the no = 1 energy level, releasing a photon with a wavelength of 93.83 nm. Compute the quantum number of the energy level the electron relaxes from, nhi. Note: the Rydberg constant in units of wavenumbers is 109,625 cm-1 nhi =16 b. What would the wavenumber, wavelength and energy of the photon be if instead no = 1 and nhi = 4? V: 6.9121e14 x (cm-¹) λ: (nm) E: 45.8e-20 ✓ (1)The first five energy levels of the hydrogen atom are at −13.6 eV, −3.4 eV,−1.51 eV, −0.85 eV, and -0.54 eV. The absorption spectrum of a hydrogen plasma is acontinuous spectrum with dark lines corresponding to all the possible transitions betweenthese five levels. Sketch the spectrum you would expect to see at wavelengths from 400 nmto 700 nm. You do not need to use colour in your sketch, but you should provide an x-axiswith tickmarks and labels in nm, label the approximate red, green and blue regions, andlabel each dark line with its wavelength. Show your calculations of the wavelengths. (Hint:you should show three dark lines.)
- a. Is a 4p → 4s transition allowed in sodium? If so, what is its wavelength? If not, why not?b. Is a 3d → 4s transition allowed in sodium? If so, what is its wavelength? If not, why not?The first five energy levels of the hydrogen atom are at −13.6 eV, −3.4 eV, −1.51 eV, −0.85 eV, and −0.85 eV. The absorption spectrum of a hydrogen plasma is a continuous spectrum with dark lines corresponding to all the possible transitions between these five levels. Sketch the spectrum you would expect to see at wavelengths from 400 nm to 700 nm. You do not need to use colour in your sketch, but you should provide an x-axis with tickmarks and labels in nm, label the approximate red, green and blue regions, and label each dark line with its wavelength. Show your calculations of the wavelengths. (Hint: you should show three dark lines.)In the Balmer series, for the Hydrogen atom, a weak transition is observed at 397nm. the value of the same transition for the Li2+ ion would correspond to an energy value of: a) 28.1 eV, b) 122.4 eV, c) 2.5 eV, d) 13.3eV, e) 119.9 eV
- Chapter 39, Problem 044 A hydrogen atom in a state having a binding energy (the energy required to remove an electron) of -1.51 eV makes a transition to a state with an excitation energy (the difference between the energy of the state and that of the ground state) of 10.200 eV. (a) What is the energy of the photon emitted as a result of the transition? What are the (b) higher quantum number and (c) lower quantum number of the transition producing this emission? Use -13.60 eV as the binding energy of an electron in the ground state. (a) Number Units (b) Number Units (c) Number UnitsIf density of mercury is 13600 kg/ m = 9.8 m/s?. Find the energy of translation 3 and g %3D per cubic metre of oxygen at N.T.P.15 b. Suppose an electron is in a spin state given by x = A(). 8i Find i. the normalization constant A ii. (S.) iii. (S.) and iv. the probability that a measurement of S, will yield h/2.
- The electron in a hydrogen atom undergoes a transition from the n=3 energy state to the ground state, n= 1. How much energy, in eV, will be given off by the electron? Use three significant figures. Note that, for hydrogen, at n=1. En=1=-13.6 eVH-alpha line is a red visible spectral line in hydrogen atom with a wavelength of 656.3 nm. Consider five distant stars labeled A, B, C, D, and E. The light from these starts was detected on Earth and, after performing spectral analysis, the following H-alpha wavelengths were measured: AA = 667.5 nm, Ag = 650.4 nm, Ac = 653.5 nm, Ap = 660.3 nm, and AE = 664.9 nm. Which star has the slowest speed relative to Earth, in which direction and how fast does it move? The slowest star is? and it moves Select an answer The speed of the slowest star (in km/s), Vslowest = Which star has the fastest speed relative to Earth, in which direction and how fast does it move? The fastest star is? and it moves Select an answer Earth. The speed of the fastest star (in km/s), Vfastest Submit Question = Earth. Units Select an answer ✓ Units Select an answer ✓Consider the energy levels of the Hydrogen atom. The allowed H-atom energy levels are given by the equation: En - 13.6 eV n² What is the energy gap between the two lowest energy levels in the Hydrogen atom? 10.2 eV 6.40 eV 12.1 eV 13.6 eV 3.40 eV