Question

why carbon tetra chloride is liquid at room tempereture

Answer 1

It has do with intermolecular forces holding the molecules together, do you which of these carbon tetrachloride has?

Answer 2

Ionic bonding??

Answer 3

nope, there is no ionic bonding inter- nor intramolecularly.

Answer 4

Can U tell me that what type of intermolecular forces CCl4 have???

Answer 5

you should be able to determine this.

I'll give you a list, you tell me.

London Dispersion

dipole-dipole

ion-dipole

ionic (we already eliminated this one)

Answer 6

dipole-dipole

Answer 7

does the molecule have a net dipole? draw it, you'll see that it doesn't

Answer 8

london dispersion forces

Answer 9

Correct. These forces are basically polarizations of the electron densities around the molecules and create attraction between them. But they are the weakest (typically) in comparison to the other forces. With that said, the london dispersion force increases promotional to mass of that molecule.

IMF's increase

eg. CH4 < C2H6 < C3H8

Answer 10

proportional* not promotional

Answer 11

So to answer your question, because the IMF's are weak.

Answer 12

Ok its mean CCl4 have greater mass as compared to CH4

Answer 13

Thanksssssssssssssss

Answer 14

yep, thats why methane is a gas at room temp

Answer 15

"IMF's increase

eg. CH4 < C2H6 < C3H8"

sorry, i just noticed i said "IMF's increase" i meant to say "london dispersion forces increase".

This is not the case when you're dealing with dipoles or ionic forces.