Question

evaporation rate: watch this video and answer the following questions: https://www.youtube.com/watch?v=f4nrw-dcigs&ab_channel=jasonmiller 4. which liquid has a faster evaporation rate - acetone, water, or ethanol? 5. which liquid had the slowest evaporation rate - acetone, water, or ethanol? 6. using properties in the lewis structure table, explain the order in which each substance evaporates

Explanation:

Step1: Recall evaporation - intermolecular force relation

Evaporation rate is inversely related to the strength of intermolecular forces.

Step2: Identify intermolecular forces

Acetone has dipole - dipole forces, ethanol has hydrogen bonding and dipole - dipole forces, water has strong hydrogen bonding.

Step3: Compare evaporation rates

Acetone has the weakest intermolecular forces among the three, so it evaporates fastest. Water has the strongest intermolecular forces due to its extensive hydrogen - bonding network, so it evaporates slowest.

Answer:

1. Acetone
2. Water
3. Acetone evaporates fastest as it has only dipole - dipole forces. Ethanol has hydrogen bonding and dipole - dipole forces, so it evaporates slower than acetone but faster than water. Water has the most extensive hydrogen - bonding network among the three, which requires more energy to break the intermolecular attractions, so it evaporates slowest.