what is temperature, heat and thermal energy
Thermal energy, which is more commonly known as heat, is a form of energy. It is measured in joules. Thermal energy is an internal energy for a given system. Thermal energy is the cause for the temperature of a system.Every system having a temperature above absolute zero has a positive thermal energy.hermal energy is a form of random energy, which is not able to do work, when the whole system is considered. Higher the thermal energy of a system higher will be the randomness of the system. Thermal energy can be converted in to mechanical energy using a heat engine.
Heat is the total energy of molecular motion in a substance while temperature is a measure of the average energy of molecular motion in a substance.Heat energy depends on the speed of the particles, the number of particles (the size or mass), and the type of particles in an object.eat is the total energy of molecular motion in a substance while temperature is a measure of the average energy of molecular motion in a substance.