If heat is exchanged between a hot and cold object, the temperature of the cold object goes on increasing due to gain of energy and the temperature of the hot object goes on decreasing due to loss of energy.
The change in temperature continues till the temperatures of both the objects attain the same value. In this process, the cold object gains heat energy and the hot object loses heat energy. If the system of both the objects is isolated from the environment by keeping it inside a heat resistant box (meaning that the energy exchange takes place between the two objects only), then no energy can flow from inside the box or come into the box.
1. Heat is transferred from where to where?
2. Which principle do we learn about from this process?
3. How will you state the principle briefly?
4. Which property of the substance is measured using this principle?
Answers
Answer:
1.) Both conduction and convection require matter to transfer heat. ... Thermal energy is transferred from hot places to cold places by convection. Convection occurs when warmer areas of a liquid or gas rise to cooler areas in the liquid or gas.
2.)Heat is transferred between a hot and cold object. Which principle do we learn about from this process? We learn about the principle of transferring heat energy from one body to the other.
3.)In other words, heat is transferred by conduction when adjacent atoms vibrate against one another, or as electrons move from one atom to another. Conduction is the most significant means of heat transfer within a solid or between solid objects in thermal contact. Fluids—especially gases—are less conductive.
4.)Temperature is a measure of how hot or cold an object is; it is a measure of the average kinetic energy of the particles of a substance. Heat is the energy transferred between two objects as a consequence of the temperature difference between them.
Explanation: