Temeperatur

Temperature is a physical quantity that expresses hot and cold. It is the manifestation of thermal energy, present in all matter, which is the source of the occurrence of heat transfer between physical systems, communicating with each other by contact. Temperature is a measure of the average kinetic energy of the particles in a system. The SI unit for temperature is Kelvin (K). Other commonly used units include degrees Celsius (°C) and degrees Fahrenheit (°F).

Temperature is a fundamental concept in thermodynamics and physics. It influences the state of matter, determining whether a substance is solid, liquid, or gas. For example, water freezes at 0°C and boils at 100°C at standard atmospheric pressure. Temperature also affects the rate of chemical reactions and the biological processes of living organisms.

Different scales are used to measure temperature. The Celsius scale is widely used around the world, with 0°C representing the freezing point of water and 100°C representing its boiling point. The Fahrenheit scale is primarily used in the United States, where water freezes at 32°F and boils at 212°F. The Kelvin scale is the absolute thermodynamic temperature scale, where 0 K represents absolute zero, the theoretical lowest possible temperature at which particle motion ceases. Conversions between these scales are possible using specific formulas.