# Convert the following temperatures to the Kelvin scale. (a) 25°C (b) 373°C

By BYJU'S Exam Prep

Updated on: September 25th, 2023

To convert a temperature from Celsius to Kelvin scale, you need to add 273.15 to the Celsius value. Absolute zero on the Kelvin scale corresponds to -273.15 degrees Celsius. Use the formula below to convert between Celsius and Kelvin.

TK=T°C+273.15

Here, TK is the temperature in Kelvin and T°C is the temperature in Celsius.

Table of content

## Conversion of Temperatures to Kelvin Scale

In particular, water freezes at 273.15 K and boils at 373.15 K. Water freezes at zero Celsius and boils at one hundred Celsius. On the Celsius scale, water freezes at 0°C and boils at 100°C. Therefore, the Kelvin scale rises by 273 K for every degree that the temperature increases.

To convert temperature from Celsius to Kelvin, you can use the formula:

TK=T°C+273.15

Simply add 273.15 to the temperature in Celsius to get the equivalent temperature in Kelvin.

Solution:

Convert the following temperatures to the Kelvin scale. (a) 25°C (b) 373°C

## (a) 25°C

TK=T°C+273.15

TK = 25 + 273.15

TK = 298.15

So, 25 degrees Celsius is equivalent to 298.15 Kelvin.

## (b) 373°C

TK=T°C+273.15

TK = 373 + 273.15

TK = 646.15

So, 373 degrees Celsius is equivalent to 646.15 Kelvin.

Summary:

## Convert the following temperatures to the Kelvin scale. (a) 25°C (b) 373°C

Here, 25°C is equivalent to 298.15 Kelvin and 373°C is equivalent to 646.15 Kelvin. The earth’s lowest recorded temperature is -273.15°C. The Kelvin temperature is added to 273.15°C since it cannot be negative. Thus, 273.15°C + 273.15K = 0K. Due to this, the Kelvin scale always begins at 273.15 K to express the lowest temperature in Celsius.

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