Q4. In gas state, the distance between H atom of a water molecule and O atom of another water molecule can be taken to be 2.57 A. Partial charge on O is -0.761e and that on H atom is + 0.380e. (a) Calculate the energy of interaction (in kJ/mol) between these two atoms. (b) How is the value calculated in part (a) compared to typical interaction between partial charges? And why? (c) If the medium is water (not vacuum), will the interaction be larger or smaller? Why?

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Coulomb potential energy in vacuum: V =
Transcribed Image Text:Coulomb potential energy in vacuum: V =
Q4.
In gas state, the distance between H atom of a water molecule and O atom of another water
molecule can be taken to be 2.57 A. Partial charge on O is - 0.761e and that on H atom is +
0.380e.
(a) Calculate the energy of interaction (in kJ/mol) between these two atoms.
(b) How is the value calculated in part (a) compared to typical interaction between partial
charges? And why?
(c) If the medium is water (not vacuum), will the interaction be larger or smaller? Why?
Transcribed Image Text:Q4. In gas state, the distance between H atom of a water molecule and O atom of another water molecule can be taken to be 2.57 A. Partial charge on O is - 0.761e and that on H atom is + 0.380e. (a) Calculate the energy of interaction (in kJ/mol) between these two atoms. (b) How is the value calculated in part (a) compared to typical interaction between partial charges? And why? (c) If the medium is water (not vacuum), will the interaction be larger or smaller? Why?
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