Answer:
The answer is
294.5 K
Step-by-step explanation:
To convert a temperature from degree Celsius to Kelvin add 273 to the value in degree Celsius
That's
K = 273 + °C
where
K is the temperature in Kelvin
°C is the temperature in degree Celsius
The value to be converted is 21.5°C
It's equivalent value in Kelvin is
K = 273 + 21.5
We have the final answer as
294.5 K
Hope this helps you