The molar heat capacity of hydrogen (H2) is 28,835 J/mol/K.
The molar heat capacity of oxygen (O2) is 29,378 J/mol/K.
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It is because of the hydrogen bonds that form between the water molecules.
The bond between water molecules is known as a hydrogen bond.
No Hydrogen is the weakest bond that can possible form between two molecules.
The water molecule is H2O; the intermolecular bonds are hydrogen bonds.
Water molecules are linked by hydrogen bonds.
Water molecules are polar because of the large electronegativity difference between the oxygen and hydrogen atoms. The oxygen atom is more electronegative than the hydrogen atoms. This causes the oxygen end of the molecule to have a slightly negative charge, and the hydrogen end to have a slightly positive charge.
The property of cohesion describes the ability of water molecules to be attracted to other water molecules, which allows water to be a "sticky" liquid. Hydrogen bonds are attractions of electrostatic force caused by the difference in charge between slightly positive hydrogen ions and other, slightly negative ions.
The hydrogen bonds between water molecules and respectively hydrogen bonds between ethanol molecules are broken by mixing; new hydrogen bonds are formed between water and ethanol molecules - this second process is exothermic.
A hydrogen bond.
The molecules in warm water are moving quicker, meaning that the hydrogen bonds between the molecules are breaking very quickly whereas the molecules in cold water are moving much slower.