Question

An experiment was conducted to determine if the intermolecular forces in two liquids affects their boiling points. Each liquid was sprayed on a paper towel. Each paper towel was wiped across a glass table to moisten the surface. The table shows a partial record of the experiment.

Answer 1

Given the partial record of the experiment, the information that should be recorded in the last column of the table is B. Time is taken by the glass surface to dry.

What is an intermolecular force?

These are forces of attraction between atoms, molecules, and ions when they are placed close to each other.

Intermolecular forces are electrostatic in nature, and this means that they arise from the interaction between positively and negatively charged species.

Hence, an intermolecular force acts between molecules and their examples are London dispersion forces, dipole-dipole interaction, ion-dipole interaction, and van der Waals forces.

Read more about intermolecular forces here:

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The complete question

An experiment was conducted to determine if the intermolecular forces in two liquids affect their boiling points. Each liquid was sprayed on a paper towel. Each paper towel was wiped across a glass table to moisten the surface. The table shows a partial record of the experiment.

Experimental Record

Liquid Intermolecular Forces ?

А relatively strong

B relatively weak

What information should be recorded in the last column of the table?

Time is taken by the liquids to start boiling

Time is taken by the glass surface to dry

The volume of liquid required to moisten the paper towels

Time taken by the paper towels to become completely moist