The relationship between kinetic energy and thermal energy is directly proportional

The relationship between kinetic energy and thermal energy is not directly proportional. Instead, thermal energy is the total kinetic energy of all the particles in an object or system. Therefore, as the kinetic energy of the individual particles increases, the thermal energy of the system also increases, but not necessarily in a directly proportional manner. Additionally, thermal energy also encompasses potential energy and intermolecular forces, which are not solely dependent on the kinetic energy of the particles.