Water, H₂O, Has a Residual Entropy of 3

Multiple Choice

Water, H₂O, has a residual entropy of 3.4 J K^-1 mol^-1 at 0 K, which arises because each water molecule may be orientated in two distinct ways. Use the Boltzmann formula to predict the residual entropy of mono-deuterated water, HDO.

A) 5.8 J K^-1 mol^-1
B) 9.2 J K^-1 mol^-1
C) 3.4 J K^-1 mol^-1
D) 0 J K^-1 mol^-1