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Reflux heating HTML5

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Summary

Temperature is one of the kinetic factors most often used to modify the rate of a chemical reaction.

Cooler temperatures will slow or stop a reaction. It is the function of the refrigerator that prevents rapid transformation (degradation) of food.

Conversely, a higher temperature can often accelerate the reaction rate. But we should take precautions. Prolonged heating may cause the complete evaporation of the solvent. If the ball is blocked, the gases would dangerously increase the pressure.

The animation shows a typical heater that can reflux heat  nbsp;a reaction mixture at constant pressure (atmospheric pressure), without loss of material (produced vapors are condensed and returned to the mixture).

Click on to start the animation.

Learning goals

  • To illustrate a reflux heating setup.

Keywords

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The reaction mixture is placed in the flask which is placed on top of a heating mantle.

The flask is held by a bracket fixed by a flat clamp but the heating mantle is placed on a lift support.…

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