A scientist is studying the kinetic isotope effect in a reaction involving deuterium. They find that the rate constant for the reaction with heavy water () is significantly smaller than that with normal water (). This difference is primarily attributed to the:
Higher viscosity of compared to .
Difference in zero-point vibrational energies of the O-H and O-D bonds.
Greater dielectric constant of compared to .
Difference in the nuclear spins of deuterium and hydrogen.
Related Questions
In the electrolysis of a mixture of ordinary water and heavy water, which gas evolves preferentially at the cathode?
H2
D2
HD
O2
Which of the following properties of heavy water is significantly DIFFERENT from ordinary water?
Density
Boiling point
Solvent properties for ionic compounds
Freezing point
A scientist is studying the kinetic isotope effect in a reaction involving deuterium. They find that the rate constant for the reaction with heavy water () is significantly smaller than that with normal water (). This difference is primarily attributed to the:
Higher viscosity of compared to .
Difference in zero-point vibrational energies of the O-H and O-D bonds.
Greater dielectric constant of compared to .
Difference in the nuclear spins of deuterium and hydrogen.
Heavy water exhibits a higher boiling point than ordinary water due to:
Higher density.
Stronger intermolecular forces due to increased mass.
Lower dielectric constant.
Higher viscosity.
Heavy water is used as a moderator in nuclear reactors primarily because it:
Absorbs neutrons efficiently.
Slows down neutrons effectively without absorbing them significantly.
Acts as a coolant by absorbing heat.
Increases the rate of nuclear fission.
