What is the freezing of water? How did you determine this value?
The freezing of water refers to the process by which liquid water turns into ice at a specific temperature. This temperature is known as the freezing point of water, which is 0 degrees Celsius or 32 degrees Fahrenheit at sea level under normal atmospheric conditions.
The value of the freezing point of water at 0 degrees Celsius (32 degrees Fahrenheit) is determined through experimental measurements and scientific observations. Initially, a variety of methods were used to determine this value, ranging from using a mercury-in-glass thermometer to more accurate techniques like the International Temperature Scale (ITS-90).
The ITS-90 is a standardized and internationally accepted method of measuring temperature. It uses a combination of platinum resistance thermometers and equations to determine different temperature points, including the freezing point of water. The scientific community has collectively agreed upon this specific temperature as the freezing point of water after extensive research and verification.