Podcast
Questions and Answers
What determines the state of a substance?
What determines the state of a substance?
- Pressure and molecular shapes
- Type of bonds and types of attractive forces
- Boiling point and vapor pressure
- Temperature and attractive forces (correct)
Why does water evaporate even if the temperature is below its boiling point?
Why does water evaporate even if the temperature is below its boiling point?
- High boiling point
- Low pressure
- Strong attractive forces
- Vapor pressure changes with temperature (correct)
What happens to the boiling point of a liquid at higher altitudes?
What happens to the boiling point of a liquid at higher altitudes?
- It decreases (correct)
- It becomes unpredictable
- It increases
- It remains the same
How do stronger attractive forces affect the phase change of molecules?
How do stronger attractive forces affect the phase change of molecules?
Which factor has a direct impact on the pressure of a gas above a liquid?
Which factor has a direct impact on the pressure of a gas above a liquid?
What property controls the phase change of a substance when the vapor pressure equals atmospheric pressure?
What property controls the phase change of a substance when the vapor pressure equals atmospheric pressure?
Why does a pure compound with stronger attractive forces have a higher boiling point?
Why does a pure compound with stronger attractive forces have a higher boiling point?
Why does octane have a higher boiling point than pentane?
Why does octane have a higher boiling point than pentane?
How does surface area affect boiling and melting points?
How does surface area affect boiling and melting points?
What plays a significant role in determining relative boiling points of compounds?
What plays a significant role in determining relative boiling points of compounds?
Which attractive force is dominant in alkanes like pentane and octane?
Which attractive force is dominant in alkanes like pentane and octane?
What type of compound is likely to have a higher boiling point based on its ability to form hydrogen bonds?
What type of compound is likely to have a higher boiling point based on its ability to form hydrogen bonds?
What type of compounds have both a polar part and a non-polar part?
What type of compounds have both a polar part and a non-polar part?
What is the term used to describe the structure formed by amphipathic compounds in water?
What is the term used to describe the structure formed by amphipathic compounds in water?
Which type of molecules make up the cell membrane?
Which type of molecules make up the cell membrane?
What surrounds human cells, providing structure and regulating what enters and exits?
What surrounds human cells, providing structure and regulating what enters and exits?
What interactions cause the formation of a micelle?
What interactions cause the formation of a micelle?
Which type of compounds have long non-polar tails making them insoluble in water?
Which type of compounds have long non-polar tails making them insoluble in water?
Which intermolecular force contributes the most to boiling point in non-polar compounds?
Which intermolecular force contributes the most to boiling point in non-polar compounds?
If two compounds have the same molecular weight, which factor determines the boiling point?
If two compounds have the same molecular weight, which factor determines the boiling point?
What type of compounds are considered hydrophobic?
What type of compounds are considered hydrophobic?
In terms of solubility, what is the general rule regarding 'like dissolves like'?
In terms of solubility, what is the general rule regarding 'like dissolves like'?
Which type of intermolecular force is responsible for the solubility of polar compounds in water?
Which type of intermolecular force is responsible for the solubility of polar compounds in water?
What determines the dominance of hydrophobic or hydrophilic character in a molecule?
What determines the dominance of hydrophobic or hydrophilic character in a molecule?
What type of attractive force is the most important in non-polar molecules?
What type of attractive force is the most important in non-polar molecules?
Which type of molecule will have stronger London Forces when compared to a smaller molecule with similar attractive forces?
Which type of molecule will have stronger London Forces when compared to a smaller molecule with similar attractive forces?
What kind of attractive force occurs between molecules that have a permanent dipole?
What kind of attractive force occurs between molecules that have a permanent dipole?
In hydrogen bonding, which element is usually the hydrogen bond donor?
In hydrogen bonding, which element is usually the hydrogen bond donor?
Which type of intermolecular force is an exceptionally strong form of dipole-dipole interaction?
Which type of intermolecular force is an exceptionally strong form of dipole-dipole interaction?
What feature makes a molecule exhibit hydrogen bonding in addition to dipole-dipole interactions and London forces?
What feature makes a molecule exhibit hydrogen bonding in addition to dipole-dipole interactions and London forces?
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