?Water molecules in the atmosphere can form hydrogen bonded dimers
Chapter 15, Problem 15.10(choose chapter or problem)
Water molecules in the atmosphere can form hydrogen bonded dimers, \(\left(\mathrm{H}_{2} \mathrm{O}\right)_{2}\). The presence of these dimers is thought to be important in the nucleation of ice crystals in the atmosphere and in the formation of acid rain.
(a) Using VSEPR theory, draw the structure of a water dimer, using dashed lines to indicate intermolecular interactions.
(b) What kind of intermolecular forces are involved in water dimer formation?
(c) The \(K_{p}\) for water dimer formation in the gas phase is $0.050$ at 300 K and 0.020 at 350 K. Is water dimer formation endothermic or exothermic?
Text Transcription:
(H2O)2
K_p
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