This is because Cl2 has close to double the mass and is also a larger molecule compared to HCl. You were correct in saying that London dispersion forces are weaker but because of Cl2s size they overcome the dipole-dipole forces in HCl.
Why boiling point of Cl2 is lower than br2?
Chlorine, as chlorine has fewer electrons shells than bromine. As a result, chlorine is smaller and has a smaller atomic radius. The difference in size, relates to boiling point of the molecule. This is because the size effects the strength of the forces between the molecules (intermolecular forces).
Why does Cl2 have a higher boiling point than HBr?
In this case the mass effect is greater than the polarity effect. HCl is more polar, but the increased mass of HBr gives it a higher boiling point. Both are nonpolar, but I2 has more mass and it is more polarizable (stronger intermolecular forces), so it will have the higher boiling point.
Why is the boiling point of Cl2 higher than O2?
Liquid oxygen and liquid chlorine are both non-polar substances that experience only London dispersion forces of attraction. These forces are greater for Cl2 because it has more electrons, so Cl2 has a higher boiling point than O2.
Why chlorine is written as CL2?
Answer: Explanation: We write chlorine as CL2 because chlorine is a non metallic gas . Also as chlorine is a gas it occurs in diatomic form as cl2 such as hydrogen(h2).
What phase is CL2 in at room temperature?
Chlorine is a greenish yellow gas at room temperature and atmospheric pressure. It is two and a half times heavier than air. It becomes a liquid at −34 °C (−29 °F).
Which has the highest boiling point Cl2 or Br2?
In short “The more electrons a molecule has, the stronger the London dispersion forcesare. For example, bromine, Br2, has more electrons than chlorine, Cl2, sobromine will have stronger London dispersion forces than chlorine, resulting in a higher boiling point for bromine, 59 oC, compared to chlorine, –35 oC.”
Why chlorine has low boiling point?
Chlorine is the most abundant halogen in the earth along with chlorine. It is always found in a compound. It has a low melting point and boiling point, second lowest to fluorine. This is because the instantaneous dipole-induced dipole bonds are weak due to Cl2 having less electrons than bromine and iodine molecules.
Why Br2 has higher boiling point than nh3?
The hydrogen bonding in NH3 is stronger than the VdW forces in F2 but weaker than the VdW forces in Br2, leading to the differences in boiling points seen.
Does Cl2 dissolve in water?
Slightly soluble in water. Liquefies at -35°C and room pressure. Readily liquefied by pressure applied at room temperature.
What type of intermolecular force is Cl2?
intermolecular forces exist among Cl2 and CCl4 molecules is London dispersion force as both are non-polar.
Does Cl2 or H2 have a higher boiling point?
Cl2 and H2 both have only London Dispersion forces. Cl2 is larger and has more electrons, making it more polarizable than H2. Thus Cl2 experiences greater London dispersion forces. As a greater amount of energy is required to break stronger forces of attraction, the boiling point of Cl2 is higher.
Would you expect NaCl or Cl2 to have a higher boiling point?
Answer and Explanation: NaCl is an ionic molecule while chlorine molecule has a covalent bond. Ionic compounds have a higher boiling point than the chlorine molecule. See full answer below.
