Scientists typically use two main temperature scales: Celsius (°C) and Kelvin (K).
Celsius (°C): The Celsius scale is based on the concept of dividing the temperature range between the freezing and boiling points of water into 100 equal intervals. The freezing point of water is defined as 0°C, and the boiling point of water is defined as 100°C at standard atmospheric pressure. The Celsius scale is widely used in everyday applications and scientific research.
Kelvin (K): The Kelvin scale is an absolute temperature scale commonly used in scientific and thermodynamic calculations. It is based on the properties of ideal gases and does not use degrees (°) in its measurement. The Kelvin scale starts from absolute zero, which is the lowest possible temperature where all molecular motion ceases. Absolute zero is defined as 0 Kelvin (0 K). The Kelvin scale has the same magnitude as the Celsius scale, but the zero point is shifted, so the temperature in Kelvin is calculated by adding 273.15 to the temperature in Celsius. The Kelvin scale is often used in physics, chemistry, and engineering, especially when dealing with thermodynamics and calculations involving gas laws.
Both Celsius and Kelvin scales are widely recognized and used in scientific research and various fields of study.