Matse 201 Exam 3 Questions With Verified Answers

Matse 201 Exam 3 Questions With Verified Answers 3R above the debye temp, the heat capacity levels off to this value higher the debye temp is higher/lower for ceramics than for metals phonon quantized mode of vibration in a crystal alpha coefficient of thermal expansion is denoted by decreases alpha increases/decreases with increasing bond strength stronger, closer stronger/weaker bonds and farther/closer atomic spacing facilitates heat transfer decrease defects tend to increase/decrease thermal conductivity atomic vibrations, conduction of free electrons two thermal conduction mechanisms are thermal expansion, thermal conductivity, fracture toughness thermal shock is dependent on these three mechanisms dielectrics materials with very high resistivity(insulating) superconductors materials with no electrical resistance below some critical temp the concentration and mobility of charge carriers the resistivity of a material depends on fermi energy corresponds to the energy level below which all occupiable states would be filled at absolute zero temperature H=NI/l equation for magnetic field strength B=uH equation for magnetic induction