Why does Br2 have higher vapor pressure than I2?

Why does Br2 have higher vapor pressure than I2?

Since I2 has higher molecular weight, it has stronger London dispersion forces so it has a higher boiling point than Br2.

Why does iodine monochloride have a higher boiling point than Br2?

are usually much weaker than the dipole-dipole forces. a dipole is induced. Iodine monochloride (ICl) has a higher boiling point than bromine (Br2) partly because iodine monochloride is a(n) polar molecule.

Does Br2 or I2 have greater dispersion forces?

The boiling points in F2, Cl2, Br2 and I2are determined by the size of the dispersion forces between molecules. The bigger the atoms, the more polarisable their electron clouds and the greater the dispersion forces. Hence boiling points are in order: I2 > Br2 > Cl2 > F2.

Which molecule has the highest boiling point Br2 Cl2 I2 or F2 group choices?

Bigger molecules will have stronger London dispersion forces. So I2 has the strongest forces, and F2 will have the weakest. Correspondingly, I2 will have the highest boiling point and F2 will have the lowest boiling point.

What is the vapor pressure of Br2?

The boiling point of bromine is 59oC, and the vapor pressure of bromine is over 1 atm above this temperature….Vapor Pressure of Gas/Liquid.

Why does Br2 have a higher boiling point than Cl2?

Br2 molecules are larger than Cl2 molecules, so more electrons are present in Br2 molecules. Therefore there are stronger van der waals forces between Br2 molecules than Cl2 molecules, so more energy is needed to melt Br2.

Why does iodine have a higher boiling point than iodine monochloride?

Stronger the intermolecular forces between the molecules, higher the boiling point. Whereas, the bond between iodine and chlorine atoms is polar, and hence, the iodine monochloride molecule is a polar molecule. The intermolecular forces between polar molecules are stronger than those between non-polar molecules.

Why does iodine monochloride have a higher boiling point than chlorine?

The boiling point of bromine is 58.8 ∘C ; the boiling point of I−Cl is 97.4 ∘C , so the difference is fairly dramatic. In addition, in I−Cl there would be some degree of bond polarity in that chlorine is certainly more electronegative than iodine, and would tend to polarize electron density towards itself. …

Why does i2 have a higher boiling point than Cl2?

Iodine is a larger molecule, with more electrons, than chlorine. Therefore Iodine has stronger intermolecular forces than chlorine, which require more energy to break. This results in Iodine having a higher boiling point than chlorine.

What is the vapor pressure of i2?

Although the vapour pressure of iodine is very low (0.027 kPa, or 0.20 mm Hg), the vapour is coloured intensely enough that we can see it.

Does bromine have a high vapor pressure?

Hazards: The boiling point of bromine is 59oC, and the vapor pressure of bromine is over 1 atm above this temperature. Therefore the tubes should not be immersed in baths above this temperature, to avoid creating high pressures within the tubes.

Why is Br2 have a higher boiling point than HBr?

Why HBr has higher boiling point than Br2? In the case of HBr you have incredibly weak polar bonds AND lower entropy. As such Br2 actually has a higher liquid entropy than HBr. A higher gap between the gas and liquid entropy tends to drop the boiling temperature.

Why does I2 have a higher boiling point than Br2?

Boiling point of Br2 = 332 K and the one of I2 = 458. I2 has a larger mass and much more electrons. Thus Van der Waals forces in I2 are stronger and boiling point is higher.

What is the relationship between vapor pressure and boiling point?

The higher the vapor pressure of a liquid at a given temperature, the lower the normal boiling point (i.e., the boiling point at atmospheric pressure) of the liquid. Vapor pressure is measured when a liquid and its vapor are?

Why does bromine have a lower boiling point than ethane?

Because bromine has weaker intermolecular forces and as a result a lower boiling point. The lower the boiling point the higher the vapor pressure Wiki User ∙ 2011-09-15 13:01:52

What is the difference between the London dispersion forces of icicl and Br2?

ICl and Br2 have the same number of electrons are are almost the same size, therefore, the strength of the London dispersion forces are essentially equal. That leaves the other two van der Waals forces as the distinguishing factors.