Chem istr y 103 Exam 3
Qu estions and answ er s
w ith accu r ate
r ationales(PASSED)
absorption - answer atoms gain energy and become excited
emission - answer excess energy of excited atoms can be released
electromagnetic radiation - answer oscillating electric and magnetic fields
characterized in wavelength and frequency
node - answer a point with zero amplitude
wavelength - answer λ, lambda, cm, m, mm, distance between a point on a wave
and the corresponding point in the next wave
frequency - answer ν, uu, 1/s, Hz, the number of waves that pass through during a
certain period of time
c - answer speed of wave, 3.00x10^8
, planck's equation - answer λ=h/mv
E=h∙ν
c= λ∙ν or ν=c/λ
E=hc/λ
light - answer electromagnetic energy, acts as a wave and a particle
photoelectron effect - answer changing amplitude will result in same amount of
emitted electrons, changing frequency/wavelength: higher emitted electrons
after threshold is passed, increased amplitude = increased electrons
the 1911 theory - answer electrons orbit the nucleus much like planets orbit the
sun
laws of thermodynamics - answer 0. in the game of energy we have the means to
determine the winner
1. you cannot win: matter and energy are conserved
2. you cannot break-even: entropy, you cannot return to an energy state
3. you cannot get out of the game: absolute zero is unattainable
first law of thermodynamics - answer total energy much remain the same, nuclear
warfare only exception (E=mc^2)
Qu estions and answ er s
w ith accu r ate
r ationales(PASSED)
absorption - answer atoms gain energy and become excited
emission - answer excess energy of excited atoms can be released
electromagnetic radiation - answer oscillating electric and magnetic fields
characterized in wavelength and frequency
node - answer a point with zero amplitude
wavelength - answer λ, lambda, cm, m, mm, distance between a point on a wave
and the corresponding point in the next wave
frequency - answer ν, uu, 1/s, Hz, the number of waves that pass through during a
certain period of time
c - answer speed of wave, 3.00x10^8
, planck's equation - answer λ=h/mv
E=h∙ν
c= λ∙ν or ν=c/λ
E=hc/λ
light - answer electromagnetic energy, acts as a wave and a particle
photoelectron effect - answer changing amplitude will result in same amount of
emitted electrons, changing frequency/wavelength: higher emitted electrons
after threshold is passed, increased amplitude = increased electrons
the 1911 theory - answer electrons orbit the nucleus much like planets orbit the
sun
laws of thermodynamics - answer 0. in the game of energy we have the means to
determine the winner
1. you cannot win: matter and energy are conserved
2. you cannot break-even: entropy, you cannot return to an energy state
3. you cannot get out of the game: absolute zero is unattainable
first law of thermodynamics - answer total energy much remain the same, nuclear
warfare only exception (E=mc^2)
