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How accurate are alcohol/spirit filled Thermometers compared to mercury ones? plus, how do "they" (for want of a better word) calibrate them?is it x amount of fluid in a thermometer of y volume?hope you understand the question, major struggle to put thought to paper here.
To calibrate a thermometre, you first have to know the use of it and so its temp range. Then you find (at least) two phase transitions with well known temperature, for example ice/water transition and water boiling. You sign "0" to the level reached by the liquid when the therm. is put in a water/ice solution at equilibrium, then you sign "100" at boiling water and then you divide the range in 100 small lines...
I never thought of that [:I] , Thanks Lightarrow