- #1
jacklwk
- 10
- 0
why we use water, but not alcohol as a coolant in the car engine?can you give me three reasons?
Heat is a form of energy that is transferred from one object to another due to a difference in temperature.
Heat is measured in units of energy, such as joules or calories. It can also be measured using a thermometer to determine the change in temperature.
The three methods of heat transfer are conduction, convection, and radiation. Conduction occurs through direct contact, convection involves the movement of fluids, and radiation is the transfer of heat through electromagnetic waves.
Heat can cause matter to change state, such as melting or boiling, and can also affect the rate of chemical reactions. It can also cause expansion or contraction of materials.
Heat and temperature are related but different concepts. Heat is the energy being transferred, while temperature is a measure of the average kinetic energy of the molecules in a substance. In other words, heat is the cause of a temperature change.