{"id":130884,"date":"2022-04-01T17:24:21","date_gmt":"2022-04-01T11:54:21","guid":{"rendered":"https:\/\/www.aakash.ac.in\/blog\/?p=130884"},"modified":"2023-03-27T23:11:02","modified_gmt":"2023-03-27T17:41:02","slug":"ncert-physics-note-whats-the-difference-between-heat-and-temperature","status":"publish","type":"post","link":"https:\/\/www.aakash.ac.in\/blog\/ncert-physics-note-whats-the-difference-between-heat-and-temperature\/","title":{"rendered":"NCERT Physics Note: What’s the difference between heat and temperature?"},"content":{"rendered":"

Heat lets us feel the temperature of a given body. Picture this, if an individual touch is a hot cup of tea, their immediate reaction is to get their hands off that cup. It happens because their hand feels the heat of the water in the cup. However, that doesn’t mean that the human body does not produce heat. It just means that the heat of the cup had a higher temperature as compared to the temperature of the human body.<\/span><\/p>\n

A person can relate heat with temperature. However, both the term share different facts and characteristics. While the term heat has the opposite term cold, the term temperature does not. It is a common misconception of considering heat equivalent to temperature. It is a common practice because they let a person feel and experience the heat energy that compels them to think that heat and temperature are the same.<\/span><\/p>\n

Even though the two terms heat and temperature more or less mean the same, they differ in certain viewpoints. Apart from this, the two terms are calculated and measured differently according to the guidelines of physics. Keep reading to find out the details that make them different from each other. But first, let us get into some introductory information.<\/span><\/p>\n

How to understand the difference between heat and temperature?<\/h3>\n

Heat is referred to as the total energy due to the motion of the molecules in a substance. It means that the movement of the molecules generates a form of energy which is called heat.<\/span><\/p>\n

On the other hand, temperature is defined as the measure of the average energy of a substance made by the motion of its molecules. It implies that temperature refers to the average energy produced by the activity of the particles of a substance.<\/span><\/p>\n

It is observed that heat is dependent on certain factors like the speed of the molecules, the size of the particles, the number of the molecules, and many other physical factors. At the same time, the temperature is independent of any physical characteristics.<\/span><\/p>\n

For example, a person can imagine a big hot bowl of soup and a small bowl of soup. The observable characteristic of both the bowls is that they are at the same temperature. However, the quantity of soup in the big bowl is more than the quantity of the soup in the smaller one. It makes a person imagine that the number of particles present in the bigger bowl is more than the number of particles present in the smaller bowl.<\/span><\/p>\n

It explains that even though both the bowls or at the same temperature, there is a difference in the heat around them, i.e., the bigger bowl (which has more soup) has now thermal energy compared to the smaller bowl. Hence, More heat is evolved from the bigger bowl though it has the same temperature as the smaller bowl of soup.<\/span><\/p>\n

Heat<\/h3>\n

The heat energy evolved from a body or during a process is termed heat. It is generally observed that when an object is at high temperatures or is considered to be immensely hot, it is supposed to possess an exceptional amount of heat energy.<\/span><\/p>\n

Similarly, when an object is at lower temperatures or is considered to be very cold, it is supposed to possess less heat energy. In scientific terms, a body is always supposed to possess some heat energy, even if it is in a negative form. It even implies that the objects are very cold. Keep in mind that every object is made above atoms and molecules, and when they collide, they produce heat energy.<\/span><\/p>\n

What do you understand about the transmission of heat?<\/h3>\n

Heat is a form of energy that can be transformed and transmitted from one object to another. As the law of conservation of energy states that energy can neither be created nor be destroyed, heat energy also follows the same rule. It means that a body always possesses heat in rest or a body in motion, irrespective of the temperatures that they are in.<\/span><\/p>\n

By obeying the law of conservation of energy, heat energy can also be transformed from one form of energy to another. Nevertheless, heat is capable of transferring from one object to another object in three different ways \u2013<\/span><\/p>\n