lämpömäärästä
Lämpömäärä, often referred to as heat energy, is the total thermal energy contained within a substance. It is a measure of the kinetic energy of the atoms and molecules within a system. When heat is transferred into a substance, its internal energy increases, leading to a rise in temperature or a change in its phase, such as melting or boiling. Conversely, when heat is removed, the internal energy decreases, resulting in a drop in temperature or a phase transition in the opposite direction.
The unit of heat energy in the International System of Units (SI) is the joule (J). However,
The amount of heat energy required to change the temperature of a substance is determined by its