Question

At STP, iodine, I2, is a crystal, and fluorine, F2, is a gas. Iodine is soluble in ethanol, forming a tincture of iodine. A typical tincture of iodine is 2% iodine by mass.

66 Compare the strength of the intermolecular forces in a sample of I2 at STP to the strength of the intermolecular forces in a sample of F2 at STP.

Answer 1

Answer: The intermolecular forces in a sample of I2 at STP are stronger than the intermolecular forces in a sample of F2 at STP.

Step-by-step explanation:

At STP, I2 is present in a solid state, where its molecules are attracted to one another and held together in a crystal form. On the other hand, at STP, F2 exists in a gaseous state, which means its molecules are only weakly attracted to one another. Since it requires more energy to hold a substance in solid form, this means that the intermolecular forces in a sample of I2 must be stronger than those in a sample of F2 at STP.