Consider Two Adjacent Water Molecules in an Ice Crystal

question 37

Multiple Choice

Consider two adjacent water molecules in an ice crystal. Assume that the binding energy connecting them follows a Lennard-Jones potential with a potential well depth of 9.6x10-21 J. How much energy must you put into the system to increase the separation of the two atoms by 10% from the equilibrium spacing?

• A)0.2x10-21 J
• B)0.4x10-21 J
• C)0.9x10-21 J
• D)1.8x10-21 J
• E)9.6x10-21 J

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