Chemistry
Chap 2 Energy
Temperature Conversions: Between Celsius and Kelvin
You can convert between Celsius and Kelvin like this:
Kelvin = Celsius + 273.0
Celsius = Kelvin – 273.0
Example #1: convert 25.0 °C to Kelvin.
Answer: 25.0 + 273 = 298.0
Example #2: convert 375 K to degrees Celsius.
Answer: 375 − 273 = 102 °C
Example #3: Convert −50.0 °C to Kelvin. (That's a minus 50.) Answer: −50.0 + 273.0 = 223.0 K
1. The boiling point of water on the Kelvin scale is __________.
2. 0 K is also known as ________________________.
3. 40.0 K is what temperature on the Celsius scale? _______________
4.
5.
-20.0 °C is what temperature on the Kelvin scale? _______________
298 K is what temperature in degrees Celsius? _______________
6. What is normal room temperature, 20 °C, in Kelvin. _______________
7.
Convert -145.0 °C to K
_______________
8. Convert 35.0 °C (a very hot day) to K
_______________
9. Convert 252 K to °C
_______________
10. The freezing point of water on the Kelvin scale is ____________.