The function of heavy water in a nuclear reactor is to(2011)
a) Slow down the speed of neutrons
b) Increase the speed of neutrons
c) Cool down the reactor
d) Stop the nuclear reaction
The function of heavy water in a nuclear reactor is to Slow down the speed of neutrons.
Heavy water is used in certain types of nuclear reactors, where it acts as a neutron moderator to slow down neutrons so that they are more likely to react with the fissile uranium-235 than with uranium-238, which captures neutrons without fissioning.