According to the kinetic theory, an increase in temperature causes the kinetic energy of particles to
Answer Details
According to the kinetic theory of matter, all matter is made up of particles that are in constant motion. The kinetic energy of a particle is the energy it possesses due to its motion. An increase in temperature means that the average kinetic energy of the particles in a substance increases. So, when the temperature of a substance increases, the kinetic energy of its particles also increases. Therefore, the correct answer is "Increase".