Why liquid rises in thermometer when temperature increases?

[eogotenks]

A Temperature Problem

Why a liquid rises in a thermometer when the temperature increases??

Added after 4 minutes:

An increase of 10° in Celcius's scale would be of how much in Fahrenheit's scale?

 

[demodb]

Re: A Temperature Problem

the liquid rises because it experiences an increase of its volume.

To calculate fahrenheit from celcius is done by 1.8*Celsius + 32 = Fahrenheit.

hope i answered your question, with regards

 

[hakeen]

Re: A Temperature Problem

Depending on the density of the liquid used, it expands itself with increasing temp. Luckily (not actually) we are using different forms of Mercury(the only liquid metal at room temp) as a liquid for thermometers. Otherwise, we would need very high thermometers (in terms of physical dimensions) to represent the temp info. For example, with water it is around 11 meters (Boticelli Experiment as far as I remember).

Regards,