Newton's law of cooling

Newton's law of cooling is a science rule that tells us how quickly something hot (like a mug of cocoa) will get colder when left to cool in a room temperature environment. According to this law, the rate at which an object cools is proportional to the difference between its temperature and the temperature of its surroundings.

This means that the hotter something is, the faster it will lose heat to the cooler air around it. The colder the air is around the object, the faster it will lose heat as well. The rate of cooling is affected by the temperature difference between the object and its environment.

For example, let's say you have a hot cup of cocoa that has just been removed from the stove. The cocoa is very hot and its temperature is much higher than the room temperature. Therefore, according to Newton's law of cooling, the rate of cooling will initially be very high because of the large temperature difference between the cocoa and the cooler environment.

As time goes on, the cocoa will start to cool down and its temperature will approach the room temperature. The rate of cooling will then slow down as the temperature difference becomes smaller. Eventually, the cocoa's temperature will become equal to the room temperature and the cooling process will stop.

So, in summary, Newton's law of cooling says that the rate of cooling of an object is proportional to the temperature difference between the object and its environment. The hotter the object and the cooler its surroundings, the faster it will cool down. The rate of cooling slows down as the temperature difference becomes smaller until it reaches thermal equilibrium with its surroundings.