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Name: kennel
Status: N/A
Age: N/A
Location: N/A
Country: N/A
Date: 1999 


Question:
Why is Mercury used in thermometers?



Replies:
Question hasn't been forgotten...it has to do with mercury's vapor pressure, but I'm looking for something more specific. Hang on.

-Joe Schultz


Sorry...not vapor pressure. Mercury has a wide liquid state temperature range (mp=-39 C and bp=357 C) so it is convenient to use in thermometers. This range is adequate for lab measurements. Temps out of these ranges usually are measured with something called a thermocouple. This converts heat energy to electrical energy and then into a temperature.

-Joe Schultz



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