Identify which 2 of the following processes involve an exothermic change: melting, boiling, freezing, deposition and sublimation

An exothermic reaction involves an output of heat, so heat is lost overall. This would mean that boiling and melting are definitely not exothermic as they involving putting in heat. Freezing is an exothermic reaction as it involves losing heat.Sublimation involves changing straight from a solid to a gas, whereas deposition involves changing rapidly from a gas to a solid. Therefore deposition is the other exothermic process, since this also involves losing heat.

Answered by Ellen S. Chemistry tutor

4563 Views

See similar Chemistry A Level tutors

Related Chemistry A Level answers

All answers ▸

What is an acid and what is the difference between and strong and weak acid


Explain why Phenol is more reactive than Benzene with bromine water.


How do I test for the presence of a carboxylic acid?


What is meant by the term chiral?


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 2013–2024

Terms & Conditions|Privacy Policy
Cookie Preferences