What are the temperatures for freezing water and boiling water on the Kelvin temperature scale?
a)273K for freezing water; 373K for boiling water
b)0K for freezing water; 100K for boiling water
c)32K for freezing water; 212K for boiling water
Add 273 to the Celsius freezing and boiling temperatures. You should know what they are.
The correct answer is a) 273K for freezing water and 373K for boiling water.
To understand how to arrive at this answer, we need to know the temperature scale being referred to - in this case, the Kelvin temperature scale. The Kelvin scale is an absolute temperature scale where 0K (Kelvin) represents absolute zero, which is the lowest possible temperature.
In the Kelvin scale, water freezes at 273K and boils at 373K. These values are derived from the Celsius scale, where water freezes at 0 degrees Celsius (0°C) and boils at 100 degrees Celsius (100°C). To convert Celsius to Kelvin, we simply add 273 to the Celsius value.
So, freezing water at 0°C would be 0 + 273 = 273K, and boiling water at 100°C would be 100 + 273 = 373K. Thus, the correct answer is a) 273K for freezing water and 373K for boiling water.