FINAL EXAM CHM 151 RIO SOLADO M.SCHAAB
QUESTIONS WITH COMPLETE SOLUTIONS
wave - CORRECT ANSWER✔✔-oscillation that can transport energy from
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one point to another in space
| | | | | |
wavelength (λ) - CORRECT ANSWER✔✔-distance between two
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consecutive peaks or troughs in a wave | | | | | |
the speed of light - CORRECT ANSWER✔✔-waves can travel through a
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vacuum at a constant speed of 2.998 ××
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| 10^8 m/s, (denoted by c).
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amplitude - CORRECT ANSWER✔✔-extent of the displacement caused
| | | | | | | |
by a wave (for sinusoidal waves, it is one-half the difference from the
| | | | | | | | | | | | |
peak height to the trough depth, and the intensity is proportional to the
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square)
blackbody - CORRECT ANSWER✔✔-Idealized perfect absorber of all
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incident electromagnetic radiation; such bodies emit electromagnetic
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radiation in characteristic continuous spectra
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,continuous spectrum - CORRECT ANSWER✔✔-electromagnetic
| | | | |
radiation given off in an unbroken series of wavelengths (e.g., white
| | | | | | | | | | |
light from the sun)
| | |
electromagnetic radiation - CORRECT ANSWER✔✔-energy transmitted | | | | | |
by waves that have an electric-field component and a magnetic-field
| | | | | | | | | |
component
electromagnetic spectrum - CORRECT ANSWER✔✔-range of energies | | | | | | |
that electromagnetic radiation can comprise, including radio,
| | | | | | |
microwaves, infrared, visible, ultraviolet, X-rays, and gamma rays; can be
| | | | | | | | |
specified in wavelengths and frequencies
| | | | |
frequency (ν) - CORRECT ANSWER✔✔-number of wave cycles (peaks or
| | | | | | | | | |
troughs) that pass a specified point in space per unit time
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hertz (Hz) - CORRECT ANSWER✔✔-the unit of frequency, which is the
| | | | | | | | | | |
number of cycles per second, s−1
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intensity - CORRECT ANSWER✔✔-property of wave-propagated energy
| | | | | | |
related to the amplitude of the wave, such as brightness of light or
| | | | | | | | | | | | |
loudness of sound | |
,interference pattern - CORRECT ANSWER✔✔-pattern typically
| | | | | |
consisting of alternating bright and dark fringes; it results from
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constructive and destructive interference of waves
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line spectrum - CORRECT ANSWER✔✔-electromagnetic radiation
| | | | | |
emitted at discrete wavelengths by a specific atom (or atoms) in an
| | | | | | | | | | | |
excited state |
node - CORRECT ANSWER✔✔-any point of a standing wave with zero
| | | | | | | | | | |
amplitude
photon - CORRECT ANSWER✔✔-smallest possible packet of
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electromagnetic radiation, a particle of light | | | | |
quantization - CORRECT ANSWER✔✔-occurring only in specific discrete
| | | | | | | |
values, not continuous
| |
standing wave - CORRECT ANSWER✔✔-localized wave phenomenon
| | | | | | |
characterized by discrete wavelengths determined by the boundary
| | | | | | | |
conditions used to generate the waves; standing waves are inherently
| | | | | | | | | |
quantized
wave particle duality - CORRECT ANSWER✔✔-elementary particles
| | | | | | |
including matter exhibit properties of both particles (including localized
| | | | | | | | |
, position, momentum) and waves (including nonlocalization,
| | | | | |
wavelength, frequency) |
The spectrum consists of colored lines, at least one of which (probably
| | | | | | | | | | | |
the brightest) is red. - CORRECT ANSWER✔✔-The light produced by a
| | | | | | | | | | |
red neon sign is due to the emission of light by excited neon atoms.
| | | | | | | | | | | | | |
Qualitatively describe the spectrum produced by passing light from a | | | | | | | | | |
neon lamp through a prism.
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c = λν - CORRECT ANSWER✔✔-speed of light = wavelength x frequency
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E = hv - CORRECT ANSWER✔✔-E is energy of a photon
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h is planks constant = 6.626 × 10^−34 J s
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v is frequency (s^-1 or Hz)
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FM-95, an FM radio station, broadcasts at a frequency of 9.51 × 10^7
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s−1 (95.1 MHz). What is the wavelength of these radio waves in meters?
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- CORRECT ANSWER✔✔-3.00 x 10^8 m/s = λ(9.51 x 10^7 m -1)
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λ = 3.00 x 10^8 m/s / 9.51 x 10^7 m -1
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λ = 3.15 meters
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Light with a wavelength of 614.5 nm looks orange. What is the energy,
| | | | | | | | | | | | |
in joules, per photon of this orange light? What is the energy in eV (1 eV
| | | | | | | | | | | | | | | |
QUESTIONS WITH COMPLETE SOLUTIONS
wave - CORRECT ANSWER✔✔-oscillation that can transport energy from
| | | | | | | |
one point to another in space
| | | | | |
wavelength (λ) - CORRECT ANSWER✔✔-distance between two
| | | | | | |
consecutive peaks or troughs in a wave | | | | | |
the speed of light - CORRECT ANSWER✔✔-waves can travel through a
| | | | | | | | | | |
vacuum at a constant speed of 2.998 ××
| | | | | | |
| 10^8 m/s, (denoted by c).
| | | |
amplitude - CORRECT ANSWER✔✔-extent of the displacement caused
| | | | | | | |
by a wave (for sinusoidal waves, it is one-half the difference from the
| | | | | | | | | | | | |
peak height to the trough depth, and the intensity is proportional to the
| | | | | | | | | | | | |
square)
blackbody - CORRECT ANSWER✔✔-Idealized perfect absorber of all
| | | | | | | |
incident electromagnetic radiation; such bodies emit electromagnetic
| | | | | | |
radiation in characteristic continuous spectra
| | | |
,continuous spectrum - CORRECT ANSWER✔✔-electromagnetic
| | | | |
radiation given off in an unbroken series of wavelengths (e.g., white
| | | | | | | | | | |
light from the sun)
| | |
electromagnetic radiation - CORRECT ANSWER✔✔-energy transmitted | | | | | |
by waves that have an electric-field component and a magnetic-field
| | | | | | | | | |
component
electromagnetic spectrum - CORRECT ANSWER✔✔-range of energies | | | | | | |
that electromagnetic radiation can comprise, including radio,
| | | | | | |
microwaves, infrared, visible, ultraviolet, X-rays, and gamma rays; can be
| | | | | | | | |
specified in wavelengths and frequencies
| | | | |
frequency (ν) - CORRECT ANSWER✔✔-number of wave cycles (peaks or
| | | | | | | | | |
troughs) that pass a specified point in space per unit time
| | | | | | | | | |
hertz (Hz) - CORRECT ANSWER✔✔-the unit of frequency, which is the
| | | | | | | | | | |
number of cycles per second, s−1
| | | | |
intensity - CORRECT ANSWER✔✔-property of wave-propagated energy
| | | | | | |
related to the amplitude of the wave, such as brightness of light or
| | | | | | | | | | | | |
loudness of sound | |
,interference pattern - CORRECT ANSWER✔✔-pattern typically
| | | | | |
consisting of alternating bright and dark fringes; it results from
| | | | | | | | | |
constructive and destructive interference of waves
| | | | |
line spectrum - CORRECT ANSWER✔✔-electromagnetic radiation
| | | | | |
emitted at discrete wavelengths by a specific atom (or atoms) in an
| | | | | | | | | | | |
excited state |
node - CORRECT ANSWER✔✔-any point of a standing wave with zero
| | | | | | | | | | |
amplitude
photon - CORRECT ANSWER✔✔-smallest possible packet of
| | | | | | |
electromagnetic radiation, a particle of light | | | | |
quantization - CORRECT ANSWER✔✔-occurring only in specific discrete
| | | | | | | |
values, not continuous
| |
standing wave - CORRECT ANSWER✔✔-localized wave phenomenon
| | | | | | |
characterized by discrete wavelengths determined by the boundary
| | | | | | | |
conditions used to generate the waves; standing waves are inherently
| | | | | | | | | |
quantized
wave particle duality - CORRECT ANSWER✔✔-elementary particles
| | | | | | |
including matter exhibit properties of both particles (including localized
| | | | | | | | |
, position, momentum) and waves (including nonlocalization,
| | | | | |
wavelength, frequency) |
The spectrum consists of colored lines, at least one of which (probably
| | | | | | | | | | | |
the brightest) is red. - CORRECT ANSWER✔✔-The light produced by a
| | | | | | | | | | |
red neon sign is due to the emission of light by excited neon atoms.
| | | | | | | | | | | | | |
Qualitatively describe the spectrum produced by passing light from a | | | | | | | | | |
neon lamp through a prism.
| | | |
c = λν - CORRECT ANSWER✔✔-speed of light = wavelength x frequency
| | | | | | | | | | |
E = hv - CORRECT ANSWER✔✔-E is energy of a photon
| | | | | | | | | |
h is planks constant = 6.626 × 10^−34 J s
| | | | | | | | |
v is frequency (s^-1 or Hz)
| | | | |
FM-95, an FM radio station, broadcasts at a frequency of 9.51 × 10^7
| | | | | | | | | | | | |
s−1 (95.1 MHz). What is the wavelength of these radio waves in meters?
| | | | | | | | | | | |
- CORRECT ANSWER✔✔-3.00 x 10^8 m/s = λ(9.51 x 10^7 m -1)
| | | | | | | | | | | |
λ = 3.00 x 10^8 m/s / 9.51 x 10^7 m -1
| | | | | | | | | | |
λ = 3.15 meters
| | |
Light with a wavelength of 614.5 nm looks orange. What is the energy,
| | | | | | | | | | | | |
in joules, per photon of this orange light? What is the energy in eV (1 eV
| | | | | | | | | | | | | | | |
