What is Kelvin Temperature?

The Kelvin temperature scale is a fundamental unit of temperature measurement in the International System of Units (SI). It is widely used in science and engineering to measure absolute temperature. Unlike the Celsius and Fahrenheit scales, Kelvin starts at absolute zero, the theoretical point where molecular motion ceases.

How is Kelvin Temperature Different?

• Absolute Zero: The Kelvin scale starts at 0 K, known as absolute zero, equivalent to -273.15°C or -459.67°F. This is the coldest possible temperature in the universe.
• No Negative Values: Unlike Celsius and Fahrenheit, the Kelvin scale does not have negative temperatures, as it begins at an absolute minimum.
• Incremental Relationship: Each Kelvin degree is equivalent to one degree Celsius, but the scales differ by their starting points.

Applications of Kelvin Temperature

The Kelvin scale is crucial in fields such as physics, chemistry, and astronomy. It is used to:

1. Measure thermodynamic temperature in experiments.
2. Understand the behavior of gases and energy transfer.
3. Study the cosmic background radiation and celestial objects.

How to Convert Kelvin to Other Scales?

Conversions between Kelvin and other temperature scales are straightforward:

• Kelvin to Celsius: Subtract 273.15 from the Kelvin value (e.g., 300 K - 273.15 = 26.85°C).
• Kelvin to Fahrenheit: Use the formula °F = (K - 273.15) × 9/5 + 32.

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