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The interatomic spring stiffness for copper is determined from Young's modulus measurements to be 28 N/m. The mass of one mole of copper is 0.064 kg....

The interatomic spring stiffness for copper
is determined from Young’s modulus measurements to be 28 N/m. The mass of one
mole of copper is 0.064 kg.
If we model a block of 25 copper atoms
as a collection of atomic “oscillators” (masses
on springs), what is one quantum of energy
for one of these atomic oscillators? Note
that since each oscillator is attached to two
“springs,” and each “spring” is half the length
of the interatomic bond, the effective inter-
atomic spring stiffness for one of these oscillators is 4 times the calculated value given
above. Use kB = 1.38 × 10−23 J/K and
¯h = 1.05 × 10−34 J · s

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Physics - 8206800.doc

The interatomic spring stiffness for copper is determined from Young’s modulus
measurements to be 28 N/m. The mass of one mole of copper is 0.064 kg. If we
model a block of 25 copper atoms
as a...

Sign up to view the full answer

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