Kelvin is a unit of temperature measurement in the International System of Units (SI). It is named after the Scottish physicist William Thomson, 1st Baron Kelvin. The kelvin is the base unit of temperature in the SI, and it is used in many scientific and engineering applications.
Key Points:
Kelvin is the base unit of temperature in the International System of Units (SI).
The kelvin scale is an absolute temperature scale, meaning it starts at absolute zero, the theoretical lowest possible temperature where the motion of particles ceases.
Water freezes at 273.15 K and boils at 373.15 K on the Kelvin scale.
To convert temperatures from Celsius to kelvin, you can use the formula: K = °C + 273.15
Study Guide:
To understand the concept of kelvin and its significance in scientific measurements, it's important to review the following key points:
What is the Kelvin scale and how does it differ from the Celsius and Fahrenheit scales?
What is absolute zero and why is it important in the Kelvin scale?
Plan an investigation to determine the relationships among the energy transferred, the type of matter, the mass, and the change in the average kinetic energy of the particles as measured by the temperature of the sample.