Melting Points: Solids in Tube - Will Temp Remain Same?

AI Thread Summary
When heating a tube containing two solid substances, the temperature will remain constant at the melting point of the substance with the highest melting point until the lower melting point substance has completely melted. This occurs because the melting process absorbs heat, preventing a temperature increase during the phase change. Once the lower melting point substance is fully melted, the temperature will then rise to the melting point of the higher melting point substance. It's important to note that a significant quantity of the substances is needed to observe this constant temperature effect. Additionally, the interaction between the two substances is crucial; if the second substance does not dissolve in the first, it can further influence the melting behavior and temperature stability.
germangb
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I have 2 solids in a tube. If i start heating the recipient, will the temperature remain the same at the melting point temperature of the substance with the highest melting point?
 
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Please elaborate, what you wrote looks cryptic to me.
 
The lowest melting point substance will being to melt first and maintain the test tube at a constant temperature until its completely melted and then the same thing will happen with the highest melting point substance.
 
Note that to observe constant temperature you need quite large amount of substance. To make things more complicated a lot depends on whether the second substance doesn't dissolve in the first one.
 

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