Is evaporating ethyl alcohol a chemical or physial change?

Answer 1

When a chemical reaches its boiling point, it expands into a gas. The ethyl alcohol (or any liquid when it is boils) stays the same, the molecules just get farther apart. So it is a physical change.

Answer 2

It is naturally reversible (i.e. no external material is required to cause the reversal) - ergo boiling point is a physical change. Water, for example, once boiled to produce steam and/or water vapor, then allowed to cool to any temperature below its boiling point, will revert to its most common liquid state (the same is true of the freezing point - if allowed to warm above its freezing point, it will again revert to its most common liquid state).

Answer 3

Evaporating ethyl alcohol is a physical change because the molecules of the alcohol are not being chemically altered during the process. Evaporation involves a physical change in state from liquid to gas, without changing the chemical composition of the substance.

Answer 4

Ethyl alcohol atoms are leaving the liquid state to a gas state, this is an example of a physical change since there is no chemical change to the species in question

Answer 5

Boiling is a physical process.
Boiling point is a characteristic, not a change.

Answer 6

its a chemical change

Answer 7

chemical

Answer 8

yes.