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Benzene is a tidy, symmetrical molecule and packs very efficiently. The methyl group sticking out in methylbenzene tends to disrupt the closeness of the packing. If the molecules aren't as closely packed, the intermolecular forces don't work as well and so the melting point falls.
Methylbenzene (toluene) has a higher boiling point than benzene because it has a larger molecular weight and dipole moment due to the presence of the methyl group, which increases intermolecular forces such as Van der Waals forces. This leads to stronger interactions between molecules in methylbenzene compared to benzene, requiring more energy to overcome and boil.
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Why does methylbenzene have higder boiling point than benzene?
Methylbenzene, also known as toluene, has a higher boiling point than benzene due to the presence of a methyl group which increases the molecular weight and induces stronger Van der Waals forces between molecules. This leads to higher energy required to break the intermolecular bonds and therefore a higher boiling point compared to benzene.
Asume benzene insoluble in water the normal boiling point of benzene and water is 80.1'c and 100'c respectively at a pressure of 1 ATM what will be the boiling point of mixture of benzene and water?
The boiling point of a mixture of benzene and water will be higher than the boiling point of either component alone, due to the presence of both compounds. The exact boiling point would depend on the concentrations of benzene and water in the mixture according to Raoult's law. If benzene and water form an ideal solution, the boiling point of the mixture would lie between 80.1°C and 100°C.
What happens if boiling point is higher than melting point?
The boiling point is always higher than the melting point.
What is more volatile benzene or hexane?
The boiling point of benzene is about 80 0C while that of hexane is 69 0C, so Hexane is more volatile.
Which has a higher boiling point 0.50 NaCl or 0.50 MgCl2?
The magnesium chloride solution has a higher boiling point.
Why does methylbenzene have higder boiling point than benzene?
Methylbenzene, also known as toluene, has a higher boiling point than benzene due to the presence of a methyl group which increases the molecular weight and induces stronger Van der Waals forces between molecules. This leads to higher energy required to break the intermolecular bonds and therefore a higher boiling point compared to benzene.
Why does benzene have a lower boiling point but a much higher melting point than toluene?
Benzene has a lower boiling point than toluene because it has a symmetric structure that experiences weaker van der Waals forces, making it easier for benzene molecules to separate and vaporize. The higher melting point of benzene compared to toluene is due to the presence of delocalized electron cloud in benzene, which results in stronger intermolecular interactions (π-π interactions) between benzene molecules in the solid state.
Asume benzene insoluble in water the normal boiling point of benzene and water is 80.1'c and 100'c respectively at a pressure of 1 ATM what will be the boiling point of mixture of benzene and water?
The boiling point of a mixture of benzene and water will be higher than the boiling point of either component alone, due to the presence of both compounds. The exact boiling point would depend on the concentrations of benzene and water in the mixture according to Raoult's law. If benzene and water form an ideal solution, the boiling point of the mixture would lie between 80.1°C and 100°C.
Why is it that aniline has a high boiling point to phenol and phenol has a high boiling point than toluene and toluene has a high boiling point than benzene?
Aniline has a higher boiling point than phenol because aniline can form strong hydrogen bonds due to the presence of an amino group. Phenol has a higher boiling point than toluene because phenol molecules can form intermolecular hydrogen bonds because of the hydroxyl group. Toluene has a higher boiling point than benzene due to the presence of a bulky methyl group which increases Van der Waals forces between toluene molecules.
Is benzene or ethyl ether highly volatile?
Ethyl ether is more volatile than benzene. Ethyl ether has a lower boiling point and vapor pressure, making it easier for it to evaporate rapidly. Benzene is less volatile compared to ethyl ether due to its higher boiling point and lower vapor pressure.
What separation method do you use to separate benzene from a mixture of benzene and methyl benzene?
Fractional distillation is commonly used to separate benzene from a mixture of benzene and methyl benzene. Benzene has a lower boiling point compared to methyl benzene, allowing it to be separated by distillation based on the difference in their boiling points.
What is the boiling point of a 2.47 molal solution of napthalene in benzenethe boiling point of benzene is 80.1?
To determine the boiling-point elevation of the solution, we need to use the formula: ΔTb = iKbm, where ΔTb is the boiling point elevation, i is the van't Hoff factor (for napthalene, i = 1 because it doesn't dissociate), Kb is the ebullioscopic constant of the solvent (benzene), and m is the molality of the solution (2.47 mol/kg). Plug in the values and solve for ΔTb. Add this value to the boiling point of benzene (80.1°C) to find the boiling point of the solution.
What is the boiling point of benzine?
Boiling Point (760 mm Hg); 80.1 deg. C (176 deg. F)
What is the state of benzene at 15 degree Celsius?
The melting point of Benzene is 5.5 and its Boiling point is 80.1. So, Below 5.5 , Benzene is a solid. Between 5.5 and 80.1 Its a liquid. After 80.1 Benzene is a Gas..
What is more volatile benzene or acetone?
Acetone is generally more volatile than benzene. Acetone has a lower boiling point and higher vapor pressure, making it more likely to evaporate at room temperature compared to benzene.
Does chlorine or oxygen has higher boiling point?
Chlorine has a higher boiling point than oxygen. Chlorine's boiling point is -34.6 degrees Celsius, while oxygen's boiling point is -183 degrees Celsius.
How do you separate kerosene from benzene?
Kerosene and benzene can be separated by fractional distillation. Since benzene has a lower boiling point than kerosene, the mixture can be heated to vaporize the benzene, which is then collected as a separate fraction.
