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Matse 201 Exam 3 With Complete Solutions
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Matse 201 Exam 3 With Complete Solutions
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Solution 2024/2025Pepper
Matse 201 Exam 3 With Complete Solutions
3R ANS✔✔ above the debye temp, the heat capacity levels off to this value
higher ANS✔✔ the debye temp is higher/lower for ceramics than for metals
phonon ANS✔✔ quantized mode of vibration in a crystal
alpha ANS✔✔ coefficient of thermal expansion is denoted by
decreases ANS✔✔ alpha increases/decreases with increasing bond strength
stronger, closer ANS✔✔ stronger/weaker bonds and farther/closer atomic spacing facilitates heat transfer
decrease ANS✔✔ defects tend to increase/decrease thermal conductivity
atomic vibrations, conduction of free electrons ANS✔✔ two thermal conduction mechanisms are
thermal expansion, thermal conductivity, fracture toughness ANS✔✔ thermal shock is dependent on these three
mechanisms
dielectrics ANS✔✔ materials with very high resistivity(insulating)
superconductors ANS✔✔ materials with no electrical resistance below some critical temp
the concentration and mobility of charge carriers ANS✔✔ the resistivity of a material depends on
, Solution 2024/2025
Pepper
fermi energy ANS✔✔ corresponds to the energy level below which all occupiable states would be filled at absolute zero
temperature
H=NI/l ANS✔✔ equation for magnetic field strength
B=uH ANS✔✔ equation for magnetic induction
permativity ANS✔✔ u in the equation for magnetic induction stands for
M=xH ANS✔✔ equation for magnetization
magnetic susceptibility ANS✔✔ x in the equation for magnetization stands for
electron spin and orbiting ANS✔✔ two contributions to magnetic moment are
B=u0(H+M) ANS✔✔ three field vectors of magnetism are related by this equation
cancel of spins ANS✔✔ this occurs if all orbitals are full and no unpaired electrons exist
diamagnetism, paramagnetism, ferromagnetism, ferrimagnetism, anti-ferrimagnetism ANS✔✔ all materials fall under
these 5 different types of magnetic behavior
diamagnetism ANS✔✔ weak force originating from electrons orbiting and results in force that is in opposition to
magnetic field
diamagnetism ANS✔✔ kind of magnetism that results in no net magnetization
water ANS✔✔ this is the perfect example of a diamagnet
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