One Debye is equal to ------- esu.cm

The Debye is a unit used to measure electric dipole moments, which indicate how charge is distributed in a molecule. Understanding this unit requires knowing how it relates to the CGS (centimeter-gram-second) system of units.

In the CGS system:

• 1 Debye is equal to 10^-18esu.cm.
• Here, "esu" refers to "electrostatic units," and "cm" represents centimeters.

This means that if a molecule has a dipole moment of 1 Debye, it is equivalent to 10^-18 esu.cm.

How to Remember This Conversion:

1 Debye is equal to a very small value in esu.cm, specifically 10^-18.

This is because a Debye is used for atomic-scale measurements, where values tend to be extremely small.

Correct Answer: Option d: 10^-18