Temperature Conversion: From Kelvin to Celsius

What is the temperature, in degrees Celsius, of a substance with a temperature of 49K?

A. -322°C

B. -224°C

C. 224°C

D. 322°C

Answer: -224°C

Answer:

The temperature conversion from Kelvin to Celsius involves a simple formula:

Celsius = Kelvin - 273.15

Given the temperature of the substance as 49 Kelvin:

Substitute the value of K:

T (C) = 49 - 273.15

T (C) = -224.15 degrees Celsius

Therefore, the temperature in degrees Celsius of a substance with a temperature of 49K is -224°C, which corresponds to option B.

Temperature is a fundamental characteristic of matter that represents the amount of heat or coldness. The measurement of temperature can be expressed in various units such as Kelvin, degrees Celsius, and Fahrenheit.

The relation between Kelvin and Celsius is established by the formula:

Celsius = Kelvin - 273.15

In this case, when the temperature is given in Kelvin, you simply subtract 273.15 to convert it to degrees Celsius. For a substance with a temperature of 49K, the conversion results in -224°C.

Understanding temperature conversions is essential in various scientific fields and applications. By knowing how to convert between different temperature units, accurate measurements and comparisons can be made in scientific experiments and calculations.