C3H8O can represent two different isomers: propanol also known as propyl alcohol and isopropanol also known as isopropyl alcohol or rubbing alcohol . Both of these substances have similar intermolecular forces.The intermolecular forces present in a substance with the chemical formula C3H8O are:1. London dispersion forces: These are weak, temporary attractive forces between nonpolar molecules caused by the formation of temporary dipoles due to the movement of electrons. Since C3H8O has nonpolar C-H and C-C bonds, London dispersion forces are present.2. Dipole-dipole forces: These are attractive forces between polar molecules. In C3H8O, the oxygen atom is more electronegative than the carbon and hydrogen atoms, creating a polar bond between the oxygen and the carbon it is bonded to. This results in a molecular dipole, leading to dipole-dipole interactions between the molecules.3. Hydrogen bonding: This is a special type of dipole-dipole interaction that occurs between molecules containing a hydrogen atom bonded to a highly electronegative atom such as oxygen, nitrogen, or fluorine . In C3H8O, the hydrogen atoms bonded to the oxygen atom can participate in hydrogen bonding with the oxygen atoms of neighboring molecules. This is the strongest intermolecular force present in C3H8O.In summary, the intermolecular forces present in C3H8O are London dispersion forces, dipole-dipole forces, and hydrogen bonding, with hydrogen bonding being the strongest of the three.