75 Kelvin is equivalent to -198.15 degrees Celsius. This conversion can be calculated using the formula:

°C = K – 273.15

In this case, to convert 75 Kelvin to Celsius, we simply plug in the value for K:

°C = 75 – 273.15

°C = -198.15

This means that 75 Kelvin is 198.15 degrees below the freezing point of water in Celsius.

To understand the significance of this conversion, it’s important to note that Kelvin is the base unit of temperature in the International System of Units (SI), and it is commonly used in scientific and engineering calculations. The Kelvin scale starts at absolute zero, which is the point at which all thermal motion ceases. This is in contrast to the Celsius scale, which starts at the freezing point of water.

When working with Kelvin and Celsius conversions, it’s crucial to remember that the two scales are related by a simple offset of 273.15. This means that 0 degrees Celsius is equivalent to 273.15 Kelvin.

Understanding how to convert between Kelvin and Celsius is essential in various scientific and engineering fields. For example, in astronomy, Kelvin is often used to measure the temperature of stars, while in chemistry, Kelvin is used in thermodynamic calculations.

In conclusion, 75 Kelvin is equivalent to -198.15 degrees Celsius. Understanding this conversion and the relationship between the Kelvin and Celsius scales is important in various scientific and engineering applications.