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Why is the enthalpy change of combustion for methanol less negative than methane?
The combustion of methanol to form products of H2O and CO2 do not have as much of an energy change compared to methane and a result methanol releases less energy compared to methane. The more negative an enthalpy change is, the more heat it is going to release.
Is water heavier than methanol?
No, water is heavier than methanol. Water has a higher density compared to methanol, which means that for the same volume, water will weigh more than methanol.
Can a block of ashwood float in Methanol?
No, not any substance, but some, and here's why. Methanol has a density of 0.79g. If you put something in the methanol, say wood (oak), that weighs 0.89g, which is more, it will sink. It all depends on if it weighs more or less than the methanol. If it weighs more, it will sink, If it weighs less, it will float.
Is methanol lighter than water?
Yes, methanol is lighter than water. Methanol has a lower density compared to water, which means it will float on top of water.
Which type of bonding explains why methanol has a much higher boiling point than methane?
Methanol has a much higher boiling point than methane primarily due to hydrogen bonding. In methanol (CH₃OH), the presence of the hydroxyl (-OH) group allows for strong hydrogen bonds between methanol molecules. In contrast, methane (CH₄) has only weak van der Waals forces (dispersion forces) between its molecules. This significant difference in intermolecular forces results in methanol requiring more energy to boil compared to methane.
Which type of bonding explains why methanol has a much higher boiling point that methane?
Methanol has a much higher boiling point than methane due to hydrogen bonding. In methanol, the presence of an -OH (hydroxyl) group allows for strong intermolecular hydrogen bonds between methanol molecules, whereas methane only exhibits weaker van der Waals forces. These hydrogen bonds require more energy to break, resulting in a higher boiling point for methanol compared to methane.
Is methane heavier than air?
Yes, methane is lighter than air. Methane gas has a molar mass of approximately 16 g/mol, which is lighter than the average molar mass of air (about 29 g/mol). This means that methane will tend to rise and disperse in the atmosphere rather than sink.
Is methanol more soluable than methane?
Yes, methanol is CH3OH and methane is CH4. Methanol is polar (because of the O-H bond) and methane is non-polar (because it is a hydrocarbon.) Water (which is polar) will dissolve other polar things, but not non-polar things.
What does the density have to be greater than for an object to float?
It has to be greater than the density of the fluid in which it is to be floated.
Why is methanol more polar than ethanol?
Methane is CH4 or H-CH3 Ethane is CH3-CH3 When compared to H- (in methane), the CH3- (methyl group in ethane) is more electron donating and hence ethane is more basic than methane.
Can ashwood float in methanol?
Yes,bacause ashwood is less dense than methonal
If an object sinks when being placed in water its density is?
To sink, the object's density must be greater than the density of water.To sink, the object's density must be greater than the density of water.To sink, the object's density must be greater than the density of water.To sink, the object's density must be greater than the density of water.
