Multiple Choice Questions

A liquid can be converted to a gas by cooling. *A gas can be converted into a liquid by cooling. *A liquid can be converted to a gas by heating. A gas can be converted into a liquid by decreasing the pressure of a gas sample. A gas can be converted into a liquid by heating. +A gas can be converted into a liquid by increasing the pressure of a gas sample.
  • What factors cause changes between the liquid and gas state?
  • Watch the animation and identify the correct conditions for forming a hydrogen bond.
  • How is the miscibility of a liquid with water related to the liquid's polarity?
  • What factors cause changes between the solid and liquid state?
H2 > CO2 > HFHF > H2 > CO2*HF > CO2 > H2CO2 > H2 > HFCO2 > HF > H2
  • Use the data to determine the heat of vaporization of nitrogen.Express your answer in kilojoules per mole.
  • Place the following compounds in order of increasing strength of intermolecular forces.CH4 CH3CH2CH3 CH3CH3
  • Place the following compounds in order of decreasing strength of intermolecular forces.HF H2 CO2
  • Rank the following compounds in order of decreasing boiling point: sodium bromide (NaBr), carbon tetrafluoride (CF4), and chloroform (CHCl3)Rank from highest to lowest boiling point. To rank items as equivalent, overlap them.
Most viscous to least:CH3CH2(CH2)9CH2CH3, CH3CH2(CH2)7CH2CH3, CH3CH2CH2CH2CH2CH2CH2CH3
  • In liquid propanol,CH3CH2CH2OHwhich intermolecular forces are present?
  • Rank the following compounds in order of decreasing boiling point: sodium bromide (NaBr), carbon tetrafluoride (CF4), and chloroform (CHCl3)Rank from highest to lowest boiling point. To rank items as equivalent, overlap them.
  • The Society of Automotive Engineers has established an accepted numerical scale to measure the viscosity of motor oil. For example, SAE 40 motor oil has a higher viscosity than an SAE 10 oil. Rank the following hydrocarbons by their expected viscosity.
  • The hydrides of group 5A are NH3, PH3, AsH3, and SbH3. Arrange them from highest to lowest boiling point.Rank the molecules from highest to lowest boiling point. To rank items as equivalent, overlap them.
*CH4 < CH3CH3 < CH3CH2CH3CH3CH3 < CH4 < CH3CH2CH3CH4 < CH3CH2CH3 < CH3CH3CH3CH2CH3 < CH3CH3 < CH4CH3CH2CH3 < CH4 < CH3CH3
  • Use the data to determine the heat of vaporization of nitrogen.Express your answer in kilojoules per mole.
  • Rank the following compounds in order of decreasing boiling point: sodium bromide (NaBr), carbon tetrafluoride (CF4), and chloroform (CHCl3)Rank from highest to lowest boiling point. To rank items as equivalent, overlap them.
  • Place the following compounds in order of increasing strength of intermolecular forces.CH4 CH3CH2CH3 CH3CH3
  • Place the following compounds in order of decreasing strength of intermolecular forces.HF H2 CO2
a solid *a liquid a gas a solid or a liquid. It is not possible to say for certain based on the information given
  • Rank these liquids by their expected surface tension.
  • What factors cause changes between the solid and liquid state?
  • A substance has a fairly high density, flows freely, and, on the molecular level, is made up of particles that are very close to one another. This substance is _____.
  • What is the predominant intermolecular force in the liquid state of each of these compounds: hydrogen fluoride (HF), carbon tetrafluoride (CF4), and methyl chloride (CH3Cl)?Drag the appropriate items to their respective bins.
Dipole-dipole forces: CH3ClHydrogen Bonding: HFDispersion forces: CF4
  • What is the predominant intermolecular force in the liquid state of each of these compounds: hydrogen fluoride (HF), carbon tetrafluoride (CF4), and methyl chloride (CH3Cl)?Drag the appropriate items to their respective bins.
  • A substance has a fairly high density, flows freely, and, on the molecular level, is made up of particles that are very close to one another. This substance is _____.
  • How is the miscibility of a liquid with water related to the liquid's polarity?
  • Rank these liquids by their expected surface tension.
*N2H4CF2H2HClCF4*H3CO2H*C2H2O4H2C2OH
  • Identify which of the following molecules can exhibit hydrogen bonding as a pure liquid.
  • Use the data to determine the heat of vaporization of nitrogen.Express your answer in kilojoules per mole.
  • Identify the compound that does not have hydrogen bonding.
  • Determine the normal boiling point of nitrogen.Express your answer in kelvins.
(CH3)2CO*H2O
  • Which compound would you expect to have greater surface tension, acetone [(CH3)2CO] or water (H2O)?
  • Use the data to determine the heat of vaporization of nitrogen.Express your answer in kilojoules per mole.
  • Which halogen has the highest boiling point?
  • Which substance has the highest boiling point?
*A solid can be converted to a liquid by heating. *A liquid can be converted to a solid by cooling. A solid can be converted to a liquid by cooling. A liquid can be converted to a solid by heating.
  • How is the miscibility of a liquid with water related to the liquid's polarity?
  • What factors cause changes between the solid and liquid state?
  • What factors cause changes between the liquid and gas state?
  • Watch the animation and identify the correct conditions for forming a hydrogen bond.
Highest to LowestSbH3, NH3, AsH3, PH3
  • The hydrides of group 5A are NH3, PH3, AsH3, and SbH3. Arrange them from highest to lowest boiling point.Rank the molecules from highest to lowest boiling point. To rank items as equivalent, overlap them.
  • In liquid propanol,CH3CH2CH2OHwhich intermolecular forces are present?
  • Rank the following compounds in order of decreasing boiling point: sodium bromide (NaBr), carbon tetrafluoride (CF4), and chloroform (CHCl3)Rank from highest to lowest boiling point. To rank items as equivalent, overlap them.
  • The Society of Automotive Engineers has established an accepted numerical scale to measure the viscosity of motor oil. For example, SAE 40 motor oil has a higher viscosity than an SAE 10 oil. Rank the following hydrocarbons by their expected viscosity.
*Dispersion, hydrogen bonding and dipole-dipole forces are present.Only hydrogen bonding forces are present.Only dipole-dipole and ion-dipole forces are present.Only dispersion and dipole-dipole forces are present.
  • The Society of Automotive Engineers has established an accepted numerical scale to measure the viscosity of motor oil. For example, SAE 40 motor oil has a higher viscosity than an SAE 10 oil. Rank the following hydrocarbons by their expected viscosity.
  • Place the following compounds in order of increasing strength of intermolecular forces.CH4 CH3CH2CH3 CH3CH3
  • The hydrides of group 5A are NH3, PH3, AsH3, and SbH3. Arrange them from highest to lowest boiling point.Rank the molecules from highest to lowest boiling point. To rank items as equivalent, overlap them.
  • In liquid propanol,CH3CH2CH2OHwhich intermolecular forces are present?
Greatest to Least Surface Tension: HO-CH2CHCH2-OH-OH, CH3CHCH2-OH-OH, CH3CH2CH2-OH, CH3CH2OCH3
  • Identify the compound that does not have hydrogen bonding.
  • Complete the following sentence.
  • What factors cause changes between the solid and liquid state?
  • Rank these liquids by their expected surface tension.
Water will have the higher surface tension since it exhibits hydrogen bonding , when compared to acetone.
  • Identify the compound that does not have hydrogen bonding.
  • What factors cause changes between the solid and liquid state?
  • Complete the following sentence.
  • Rank these liquids by their expected surface tension.
Highest to Lowest Boiling Point: Sodium Bromide (NaBr), Chloroform (CHCl3), Carbon Tetrafluoride (CF4)
  • The hydrides of group 5A are NH3, PH3, AsH3, and SbH3. Arrange them from highest to lowest boiling point.Rank the molecules from highest to lowest boiling point. To rank items as equivalent, overlap them.
  • Place the following compounds in order of decreasing strength of intermolecular forces.HF H2 CO2
  • Place the following compounds in order of increasing strength of intermolecular forces.CH4 CH3CH2CH3 CH3CH3
  • Rank the following compounds in order of decreasing boiling point: sodium bromide (NaBr), carbon tetrafluoride (CF4), and chloroform (CHCl3)Rank from highest to lowest boiling point. To rank items as equivalent, overlap them.
ΔH = 5.92 kJ/mol
  • Use the data to determine the heat of vaporization of nitrogen.Express your answer in kilojoules per mole.
  • Which compound would you expect to have greater surface tension, acetone [(CH3)2CO] or water (H2O)?
  • Determine the amount of heat (in kJ) required to vaporize 1.75 kg of water at its boiling point. For water, ΔHvap = 40.7 kJ/mol (at 100 ∘C).
  • Determine the normal boiling point of nitrogen.Express your answer in kelvins.
The polarity of a liquid does not affect its miscibility with water.The less polar the liquid, the more likely that it is miscible with water.*The more polar the liquid, the more likely that it is miscible with water.The more polar the liquid, the less likely that it is miscible with water.
  • Determine the normal boiling point of nitrogen.Express your answer in kelvins.
  • Watch the animation and identify the correct conditions for forming a hydrogen bond.
  • What factors cause changes between the solid and liquid state?
  • How is the miscibility of a liquid with water related to the liquid's polarity?
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Multiple Choice Questions
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