Question

One mole of Acetone requires less heat to vaporise than 1 mole of water. Which of the 2 liquids has higher enthalpy of vaporisation.

Answer 1

$\huge \mathfrak {Answer:-}$

Water has higher enthalpy of vaporisation.

(∆Hr)water > (∆Hr)acetone

$\bold{Because,}$

Water requires more heat or energy to vaporise.

$\huge{Be\:Brainly}$❤️

Answer 2

Explanation:

The amount of heat energy required by a liquid substance to convert it into gaseous or vapor state is known as heat of vaporization.

Hence, more is the heat required higher will be the enthalpy of vaporization.

As acetone is a more volatile liquid as compared to water. Therefore, acetone will evaporate at a faster rate and it will have lower enthalpy of vaporization.

On the other hand, water has hydrogen bonding and in order to break these bonds we need to provide it high heat.

Thus, we can conclude that out of the two liquids water will have higher enthalpy of vaporization.