All Questions
Tagged with hydrogen-bond thermodynamics
6
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Why does steam store large amounts of energy?
We all know that steam can be used to perform mechanical work and steam has a high capacity for energy storage. But why does steam have such high energy capacity?
I tried searching for answers on the ...
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3
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How does the entropic force arise within the hydrophobic effect?
I know that the hydrophobic effect is usually explained by the entropic effect originating from the disruption of hydrogen bonds between molecules of water and the nonpolar substance. The hydrogen ...
- 153
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Hydrogen Bonding in Water Phase Changes
How is the disparity between the heat of fusion and the heat of vaporization for $\ce{H2O}$ best explained?
A) It takes more hydrogen bonds for water to fuse than it does to vaporize.
B) Water ...
- 23
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Molecules having higher enthalpy of vaporization and boiling point than another but with lower entropy of vaporization?
I came across the Trouton's rule that predicts the entropy of vaporization of most molecules to be around 85~88kJ/(K mol). It is said to fail when there is hydrogen bond between molecules.
When I ...
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Specific Heat Capacity of Heavy Water
Water has an unusually high specific heat capacity due to it's hydrogen bonds.
Why is it that the change in isotope causes a 10% difference in the heat capacity? How does the added neutron in the ...
- 109
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Why does hydrogen fluoride have a boiling point so much lower than that of water?
$\ce{F}$ has more unshared electron pairs and is very electronegative, so $\ce{H}$ of another $\ce{HF}$ molecule can $\ce{H}$-bond with it.
$\ce{HF}$ has normal boiling point of $\pu{19.5^oC}$ while $...
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