Which of the following scales of temperature does not have negative degrees of temperature?

The correct answer is Kelvin.

Key Points

• The Kelvin scale is an absolute temperature scale starting at absolute zero, the point where all molecular motion ceases.
• Absolute zero is defined as 0 K on the Kelvin scale, which is equivalent to -273.15°C on the Celsius scale.
• Since the Kelvin scale starts from absolute zero, it does not have negative values.
• The Kelvin scale is primarily used in scientific contexts, especially in physics and chemistry, due to its absolute nature.
• The Kelvin scale is named after William Thomson, 1st Baron Kelvin, who proposed it in the mid-19th century.

Additional Information

• Reaumur Scale
  • The Reaumur scale, also known as the "octogesimal division," has its freezing point of water at 0 degrees and the boiling point of water at 80 degrees.
  • It is not commonly used today and has been largely replaced by the Celsius and Kelvin scales.
• Fahrenheit Scale
  • The Fahrenheit scale, used primarily in the United States, sets the freezing point of water at 32 degrees and the boiling point at 212 degrees.
  • This scale can have negative values; for instance, the freezing point of brine is 0°F, which is lower than the freezing point of water.
• Celsius Scale
  • The Celsius scale sets the freezing point of water at 0 degrees and the boiling point at 100 degrees under standard atmospheric pressure.
  • It can have negative values, for example, temperatures below the freezing point of water.
• Temperature Scales Comparison
  • The Kelvin scale is used in scientific measurements where absolute values are necessary.
  • The Celsius scale is widely used around the world in everyday temperature measurements.
  • The Fahrenheit scale is used primarily in the United States for everyday temperature measurements.