Unknown No Molar Mass Dipole Moment Surface Area Melting Point
1 58 3.75 180 22.0
2 112 1.02 182 107
3 112 2.00 182 145



A student is exploring three unknown compounds with their data shown above. all three compounds are made of carbon, hydrogen and phosphorus. Does unknown #2 have stronger intermolecular forces, weaker intermolecular forces, or the same strength of intermolecular forces as Unknown #1? Explain your reasoning.