Binding Energy, Interatomic Spacing,& Physical PropertiesInteratomic spacing is equilibrium spacing between the
centers of two atoms (at a particular temperature),
equilibrium is lowest energy state, attractive and repulsive
forces are balanced
Binding (bond) energy is energy required to separate two
atoms from their equilibrium spacing to an infinite distance
apart, E = mc2, so each time two atoms bound to each other,
some mass is converted into energy, …
Modulus of elasticity, Young’s modulus, is slope of the stressstrain
curve in elastic region (macroscopic), can be derived
from slope of force versus distance curve at interatomic
spacing (microscopic)
Coefficient of thermal expansion and melting temperature
can also be explained from binding energy curve
Binding Energy, Interatomic Spacing,& Physical PropertiesInteratomic spacing is equilibrium spacing between thecenters of two atoms (at a particular temperature),equilibrium is lowest energy state, attractive and repulsiveforces are balancedBinding (bond) energy is energy required to separate twoatoms from their equilibrium spacing to an infinite distanceapart, E = mc2, so each time two atoms bound to each other,some mass is converted into energy, …Modulus of elasticity, Young’s modulus, is slope of the stressstraincurve in elastic region (macroscopic), can be derivedfrom slope of force versus distance curve at interatomicspacing (microscopic)Coefficient of thermal expansion and melting temperaturecan also be explained from binding energy curve
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