Which one of the following statements best defines the concept of heat?

Correct option is C

The correct answer is (c) The transfer of energy due to temperature difference. Heat is the transfer of energy from a higher temperature object to a lower temperature one. It is a form of energy transfer that occurs when there is a temperature difference between two systems or objects. The energy continues to flow until thermal equilibrium is achieved, meaning both objects or systems reach the same temperature. This energy transfer can happen through three main modes: conduction, convection, or radiation, depending on the medium and situation. Information Booster: ● Heat flows from a hot object to a cold object due to temperature difference. ● Conduction occurs when heat transfers through a solid medium. ● Convection occurs in fluids, where the heat is carried by the movement of particles. ● Radiation transfers heat through electromagnetic waves without needing a medium. ● Thermal equilibrium is when two objects or systems reach the same temperature, and heat transfer stops. Additional Knowledge: ● Option (a) refers to general energy transformation, but not specifically heat. ● Option (b) mentions mass-energy equivalence, related to Einstein’s theory, but not heat transfer. ● Option (d) describes thermal expansion, which occurs due to heat, but does not define heat itself.