Question

electrical bonding investigation plan quick check
which procedure would produce the best data for comparing the electrostatic forces between the molecules of different substances? (1 point)
○ heat each substance in liquid form to its boiling point. measure the temperature of each substance
○ heat each substance in solid form to its melting point. measure the quantity of each substance that has melted
○ heat each substance in liquid form for the same amount of time. measure the temperature of each substance
○ heat each substance in solid form for the same amount of time. measure the temperature of each substance.

Explanation:

To compare electrostatic forces (intermolecular forces) between molecules, we analyze the procedures:

• Boiling point (liquid to gas) depends on intermolecular forces—higher forces mean higher boiling point. Measuring boiling point temperature (option 1) directly relates to overcoming these forces.
• Melting point (solid to liquid) is about intramolecular/weaker forces, and measuring melted quantity (option 2) or heating solids/liquids for same time (options 3,4) don’t isolate intermolecular force comparison as well as boiling point measurement.

Answer:

A. Heat each substance in liquid form to its boiling point. Measure the temperature of each substance