Answer: The particles move more quickly.
Explanation:
Kinetic energy is the energy possessed by an object by virtue of its motion. It is determined by the equation:
From above, it is visible that kinetic energy is directly related to the temperature of the system. So, if temperature is more, average kinetic energy of the system is more and movement of particles is more.
Thus the particles in water are heated, they gain kinetic energy and hence move more quickly.