Why does vinegar NOT have a constant boiling point?

Question

Jeremiah Adams · Accepted Answer

Vinegar is not a pure substance...............

We would not expect vinegar to have a constant boiling point; to start, it would likely be higher than the boiling point of water, but it is not a pure substance; rather, it is a solution of acetic acid in water at concentrations ranging from, say, 5-20% (m/m).

Cameron Andrews · Answer

Virtually the same temperature as water, i.e. just fractionally above 100 degrees Celsius.

https://tutor.hix.ai Note that vinegar is not the same as acetic acid. You cannot accurately state a boiling point for vinegar unless you know the actual concentration of acetic acid in the vinegar. It is a very dilute solution of acetic acid in water, with concentration varying from roughly 4% w/w to around 20% w/w depending on whether it's the type you find in supermarkets or the type used for industrial food production.

Natalie Anton · Answer

undefined Vinegar does not have a constant boiling point because it is a mixture of water and acetic acid. The boiling point of a solution can vary depending on the concentration of the components present. As the mixture boils, the more volatile component (in this case, water) evaporates first, leaving behind a more concentrated solution of acetic acid, which then has a higher boiling point. Therefore, the boiling point of vinegar changes as the composition of the solution changes during evaporation.

Wyatt Adkins · Answer

undefined Vinegar is a solution of acetic acid and water, typically containing around 5-8% acetic acid by volume. The boiling point of vinegar can vary because its composition is not fixed; it can change depending on factors such as the concentration of acetic acid, impurities, and atmospheric pressure. Consequently, vinegar does not have a constant boiling point like pure substances because its composition can vary, leading to fluctuations in its boiling point.