Since the van der Waals bond is stronger than hydrogen, HF will have a higher boiling temperature. c) The intermolecular bonding for HF is hydrogen, whereas for HCL, the intermolecular bonding is van der Waals. Since the hydrogen bond is stronger than van der Waals, HF will have a higher boiling temperature.
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Similarly, does HCl have a high boiling point?
Subsequently, question is, why does HBr have a high boiling point than HCl? Bromine is a larger ion than chlorine and thus has stronger Van der Waals forces. Larger amounts of energy (a higher temperature) are required to break these interactions and so the boiling point of HBr is higher than HCl.
Accordingly, why melting point of HI is greater than HF?
Although HI has a higher molecular mass than HF, the Van Der Waal”s forces of attraction in HI are overpowered by intermolecular hydrogen bonding in HF. Hence, HF has a lower melting point than HI.
Is HCL polar or nonpolar?
HCL is a polar molecule as chlorine has a higher electronegativity than the hydrogen. Thus, it attracts electrons to spend more time at its end, giving it a negative charge and hydrogen a positive charge. How do you know if Br2 is polar or nonpolar?
26 Related Question Answers Found
Is HCL more hi than volatile?
The most volatile compound is HCl. The volatility of compound is its property to have high vapour pressure at ordinary temperature. Thus HI is liquid and Hcl is a gas. But due to hydrogen bonding in HF it is least volatile.
How do you determine boiling point?
There are 3 important trends to consider. The relative strength of the four intermolecular forces is: Ionic > Hydrogen bonding > dipole dipole > Van der Waals dispersion forces. Boiling points increase as the number of carbons is increased. Branching decreases boiling point.
What is the strongest intermolecular force?
Which one has the highest boiling point he NE KR XE?
Therefore, when looking at the noble gases, boiling point is predicted to increase as you go down, in the order He, Ne, Ar, Kr, Xe, Rn, and this is indeed the case. He (-268.9 °C), Ne, (-246.1 °C), Ar (-185.8 °C), Kr (-153.2 °C), Xe (-108.1 °C), Rn (-61.85 °C).
Why HF has low boiling point?
Fluorine is more electronegative than oxygen. Yet we would expect stronger hydrogen bonds formed with fluorine than with oxygen. So more hydrogen bonding per molecule of water than per molecule of HF causes HF to have lower bp than water.
What is the boiling point of f2?
The boiling points of ammonia (NH3), fluorine (F2) and bromine (Br2) are -33, -188 and +59 degrees celsius respectively. Explain the differences in these boiling points, including the names of any relevant forces and particles.
Why does HCl have a lower boiling point than cl2?
-HCl has the higher boiling point because liquid HCl has hydrogen-bonding interactions while liquid Cl2 has no hydrogen bonding interactions. -HCl has the higher boiling point because liquid HCl has dipole-dipole forces while liquid Cl2 does not have dipole-dipole forces.
Why does sodium chloride have a high melting point?
Sodium Chloride has a high melting point, as it has a giant ionic lattice hence has strong electrostatic forces of attraction between oppositely charged ions, which requires lots of energy to overcome the forces.
Why does graphite have a high melting point?
However, graphite still has a very high melting and boiling point because the strong covalent bonds that hold the carbon atoms together in the layers require a lot of heat energy to break.
Why does HI have a higher boiling point?
| Socratic ) Hence the boiling point of HI is highest because of it”s big molecular size (the intermolecular van der Waals forces would be strongest between the large sized molecules in comparison to smaller ones- van der Waals forces ).
Which has higher melting point HBr or HF?
HF has a higher boiling point than HBr because of hydrogen bonds.
Why is hydrogen iodide melting point low?
There are enough electrons in the I2 molecule to make the temporary dipoles creating the dispersion forces strong enough to hold the iodine together as a solid. But they aren”t all that strong, and so the solid has a low melting point and boiling point.
Why is the melting point of hydrogen iodide lower than iodine?
Water has a greater boiling point than hydrogen iodide as water has hydrogen bonds, whereas iodine only has permenant dipole-dipole interactions. In hydrogen iodide hydrogen is connected to iodine which is only electronegative to form a dipole that creates permenant dipole-dipole interactions.
Which bonds or interactions are responsible for the higher boiling point of hydrogen iodide?
The strength of hydrogen bonding of HF is so much that the boiling point of HF>HI although boiling point of SbH3>NH3, i.e. the hydrogen bonding dominates the van der Waals interactions in HI molecules because of their high molecular mass.