Answer: Please see explanation column for answer
Explanation: This is because
Carbon tetrachlorideCCl4 is significantly larger in terms of molecular mass than trichloromethane,CHCl3 which is also accrued from the fact that Chlorine is much more larger than hydrogen with tetachloromethane havng molecular mass of 154 and trichloromethane with 118.5. The rule is that larger molecules tend to have greater intermolecular interaction strength and higher polarizabilities because they have a higher number of electrons and their electrons are further from thier nuclei.
Also, the London dispersion forces between Carbon tetrachlorideCCl4 molecules increases its boiling point above that of Trichloromethane even though Trichloromethane experiences both London dispersion and dipole-dipole forces, In this case the the london dispersionforces between Carbon tetrachlorideCCl4 outweighs the weak dipole interactions present in trichloromethane, CHCl3
Answer:
CCl4 has greater london dispersion forces, so a higher boiling point
Explanation:
Step 1: Data given
The boiling point of carbon tetrachloride (CCl4) is higher than that of chloroform (CHCl3)
Chloroform (CHCl3) is polar and carbon tetrachloride (CCl4) is nonpolar.
Molar mass of carbon tetrachloride (CCl4) = 153.82 g/mol
Molar mass of chloroform (CHCl3) = 50,49 g/mol
Step 2:
Carbon tetrachloride (CCl4) has is larger than chloroform, this means it has a greater mass per mol( molar mass) than chloroform.
Carbon tetrachloride (CCl4) has more electrons than chloroform.
Since Carbon tetrachloride (CCl4) has more electrons, it's more polarizable.
Since it's more polarizable, it will have greater London dispresion forces.
These London dispersion forces between the CCl4 molecules will raise the boiling point above the boiling point of chloroform.
