01. Two hydrogen atoms and one oxygen atom makes a water molecule. Heavy water is also water, but it contains a higher proportion of the hydrogen isotope – deuterium.
2. Heavy water has a higher freezing and boiling point when compared to water.
3. In terms of density, pH value, dynamic viscosity, heat fusion, heat of vaporization, surface tension and refractive index, heavy water has higher values than that of water.
4. Heavy water has a more tetrahedral shape, and the water has a broader structure.
5. While water is essential for all, heavy water can be harmful to living organisms.
