Question

Boilin point is lower for deuterium than that of hydrogen.
If this is true enter 1, if false enter 0.

Answer 1

Boiling point of deuterium is higher than that of hydrogen.

The hydrogen bonds in deuterium oxide are slightly stronger than those in water. It, therefore, requires more energy to excite the bonding electrons from the ground level to the dissociation point and a higher boiling point is observed.