Which temperature scale is used to measure absolute temperature?

• A. Kelvin
• B. Rankine
• C. Fahrenheit
• D. Celsius

Answer: (A)

Verified step by step guidance

1. Understand that absolute temperature refers to a scale where zero represents the theoretical point of absolute zero, the lowest possible temperature where particles have minimal thermal motion.
2. Recall that the Kelvin scale is designed to measure absolute temperature, starting at absolute zero (0 K) and increasing in increments equivalent to degrees Celsius.
3. Recognize that other temperature scales like Celsius and Fahrenheit are relative scales based on the freezing and boiling points of water, not absolute zero.
4. Note that the Rankine scale is an absolute scale like Kelvin but uses Fahrenheit-sized degrees instead of Celsius-sized degrees.
5. Conclude that the Kelvin scale is the standard temperature scale used in scientific contexts to measure absolute temperature.