Kelvin Temperature Scale

The Kelvin scale is a temperature scale that is based on the absolute zero, the point at which all molecular movement ceases. It is named after the Scottish physicist William Thomson, 1st Baron Kelvin. The Kelvin scale is used in scientific and engineering calculations where an absolute temperature scale is required.

Converting Celsius to Kelvin

To convert a temperature from Celsius to Kelvin, you can use the following formula:

Kelvin = Celsius + 273.15

Converting Kelvin to Celsius

To convert a temperature from Kelvin to Celsius, you can use the following formula:

Celsius = Kelvin - 273.15

Examples

If the temperature is 25°C, then the temperature in Kelvin would be:

Kelvin = 25 + 273.15 = 298.15 K

If the temperature is 300 K, then the temperature in Celsius would be:

Celsius = 300 - 273.15 = 26.85°C

Practice Problems

Convert 37°C to Kelvin.
Convert 500 K to Celsius.

◂Math Worksheets and Study Guides Eighth Grade. Real numbers

The resources above cover the following skills:

The Number System

Know that there are numbers that are not rational, and approximate them by rational numbers.

Know that numbers that are not rational are called irrational. Understand informally that every number has a decimal expansion; for rational numbers show that the decimal expansion repeats eventually, and convert a decimal expansion which repeats eventually into a rational number. [8-NS1]

Expressions and Equations

Work with radicals and integer exponents.

Use square root and cube root symbols to represent solutions to equations of the form x^2 = p and x^3 = p, where p is a positive rational number. Evaluate square roots of small perfect squares and cube roots of small perfect cubes. Know that √2 is irrational. [8-EE2]