MYTUTOR SUBJECT ANSWERS

17128 views

Explain why chlorine (Cl2) is a gas at room temperature, but sodium chloride (NaCl) is a solid at room temperature.

The melting/boiling point of a substance determines what state of matter it takes at a certain temperature.

In Cl2 there are covalent bonds between the atoms forming simple molecules. There are weak attractions between molecules of Cl2 meaning little energy is needed to break these forces of attraction and therefore Cl2 has a low boiling point. 

NaCl on the other hand has strong electrostatic forces of attraction between the positvely charged Na ion and the negatively charged Cl ion. NaCl forms a giant ionic lattice that requires high amounts of energy to break and therefore has a high melting point. 

Lily W. GCSE Chemistry tutor, A Level Chemistry tutor

11 months ago

Answered by Lily, a GCSE Chemistry tutor with MyTutor

Still stuck? Get one-to-one help from a personally interviewed subject specialist

155 SUBJECT SPECIALISTS

£20 /hr

Nermeen H.

Degree: History (Bachelors) - Oxford, Balliol College University

Subjects offered: Chemistry, Music+ 4 more

Chemistry
Music
History
Biology
.HAT.
-Oxbridge Preparation-

“About me Hi, I’m Nermeen – I am a History student at Oxford University. I love all things ‘history’ in all its gory glory!Passion is key to success and I hope to instil my passion for history, as well as learning more generally, in y...”

£22 /hr

Rama K.

Degree: MBChB (Bachelors) - Birmingham University

Subjects offered: Chemistry, Physics+ 5 more

Chemistry
Physics
Maths
English
Biology
.BMAT (BioMedical Admissions)
-Personal Statements-

“I am a passionate medical student who would love to teach the sciences and maths to any willing student! I would also love to help prospective medical students achieve their dreams!”

£18 /hr

Ben B.

Degree: Medicine (Bachelors) - Bristol University

Subjects offered: Chemistry, Science+ 3 more

Chemistry
Science
Maths
Biology
-Medical School Preparation-

“Hi - I'm currently in my 3rd year of studying Medicine at Bristol University and am taking an intercalated year out to conduct my own research into 3D printing applications in Cerebral Palsy. I have a real interest in science with ent...”

MyTutor guarantee

About the author

Lily W.

Currently unavailable: for regular students

Degree: Medicinal and Biological Chemistry (Masters) - Edinburgh University

Subjects offered: Chemistry

Chemistry

“About me:Hello I'm Lily and I'm a first year Chemist at the University of Edinburgh. Being passionate and enthusiastic about my subject means that I'm eager to help students conquer their difficulties with Chemistry to not only achie...”

You may also like...

Posts by Lily

At what temperature does the reaction become feasible? When ΔH = 492.7 kJmol^-1 and ΔS = 542.6 JK^-1mol^-1.

Explain why chlorine (Cl2) is a gas at room temperature, but sodium chloride (NaCl) is a solid at room temperature.

Other GCSE Chemistry questions

How do each of ionic, covalent and metallic bonding compare?

What is a mole?

What does Avogadro's number mean?

I don't understand what exactly a mole is, could you please explain it to me?

View GCSE Chemistry tutors

Cookies:

We use cookies to improve our service. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok