Newton's Law of Cooling is a mathematical equation that describes how the temperature of an object changes over time as it exchanges heat with its surroundings. It provides a simple model for understanding the cooling or heating of an object due to the temperature difference between the object and its environment.

The law is often expressed as follows:

dT/dt​=−k(T−Tenv​)

Where:

• dT/dt​ is the rate of change of temperature of the object with respect to time.
• T is the temperature of the object at a given time.
• Tenv​ is the temperature of the environment or surroundings.
• k is the cooling or heating rate constant, which depends on various factors such as the nature of the object, its surface area, and the nature of the surroundings.