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

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Discussion Overview

The discussion revolves around the behavior of two solids with different melting points when heated in a tube. Participants explore whether the temperature will remain constant at the melting point of the solid with the highest melting point during the heating process.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification

Main Points Raised

  • One participant questions if the temperature will remain the same at the melting point of the substance with the highest melting point when heating two solids in a tube.
  • Another participant suggests that the solid with the lowest melting point will begin to melt first, maintaining the temperature until it is completely melted, after which the higher melting point solid will follow.
  • A further contribution notes that observing a constant temperature requires a significant amount of substance and raises the complexity of the situation by mentioning that the interaction between the two substances, particularly if one dissolves in the other, could affect the outcome.

Areas of Agreement / Disagreement

Participants express differing views on the behavior of the solids during heating, indicating that there is no consensus on the specific outcomes or conditions under which the temperature remains constant.

Contextual Notes

Limitations include the need for a large amount of substance to observe constant temperature and the potential impact of one substance dissolving in the other, which remains unresolved.

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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