what effect would poor circulation of the melting point bath liquid have on the observed melting point?
It would lead to inaccurate measurement of the melting point. This is because the measured temperature is actually at the position of the thermocouple or thermometer, not at the sample, so the sample's temperature may be different from what is indica...
how can we measure two different temperatures in one temperature controller?
You need a dual-channel temperature controller. That, or some way to swap out the thermocouple leads. Doug
What is the purpose of a thermocouple?
A thermocouple is used as a thermometer situations where an ordinary thermometer is not practical, it consists of two dissimilar metals in close contact with each other, under these conditions an electric current is created and used to operate a movi...