Explain what happens to a crystal of iodine when it is heated (5marks)

A crystal of iodine sublimes from its solid state to its gaseous state without turning into a liquid. Iodine forms a molecular covalent crystal. This means that there are strong covalent bonds within the molecules of I2 but weak Van der Waals forces holding the molecules of I2 in the crystalline structure. When Iodine is heated, these weak Van der Waals forces are broken, freeing the gaseous molecules of I2 from the crystalline structure.

MI
Answered by Meghna I. Chemistry tutor

19765 Views

See similar Chemistry A Level tutors

Related Chemistry A Level answers

All answers ▸

Explain why water molecules form on average two hydrogen bonds per molecule, whereas ammonia molecules (NH3) form only one.


How does the reactivity of group 2 elements change down the group, and what is the cause of this trend?


Why do ionisation energies increase across a period?


Can you describe four variables which affect the rate of a chemical reaction and how they affect the rate?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences