Question

Materials have different moduli of elasticity due to different bond energy functions. In a crystal structure, the equilibrium position of each atom is at the minimum of a three-dimensional energy distribution. The shape of this energy function can be different in different directions, resulting in an elastic modulus that is different in different directions. Order the bond energy curves given below based on the corresponding elastic modulus.

Rank the items from largest to smallest elastic modulus. To rank items as equivalent, overlap them.

Materials have different moduli of elasticity due to different bond energy functions. In a crystal structure, the equilibrium position of each atom is at the minimum of a three- dimensional energy distribution. The shape of this energy function can be different in different directions, resulting in an elastic modulus that is different in different directions. Order the bond energy curves given below based on the corresponding elastic modulus. Rank the items from largest to smallest elastic modulus. To rank items as equivalent, overlap them. View Available Hint(s) Reset Help TEMUA

Answer 1

The elastic modulus is proportional to the curvature of the potential. Solids with stronger bonds are stiffer than solid with weaker bonds. Thus, the curve E is steeper, then the curve C, then D, then B, and then A. Hence, (e) > (c)>(d) <(b)<(a)