Question

The apparatus for ref1uxing a solution is always left open to the atmosphere during heating and...

The apparatus for ref1uxing a solution is always left open to the atmosphere during heating

and is never stoppered.

Describe what change occurs in a closed system when the temperature of that system is

increased.
Not in the aspect of SAFETY!

Science   Chemistry   
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Answer #1

The apparatus for refluxing a solution is always left open to the atmosphere during heating and is never stoppered.

If the reflux process occurs in a closed system and when the temperature of that system is increased, then the volatile impurities in the reaction mixture can't escape from the system. As a result, the product obtained by reflux is not highly pure, which has to be further purified.

This is the reason and considering the safety issue (pressure develops in the closed system which causes the system to explode), the reflux reactions are performed in open systems.

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