Understanding Reference Table H

The video tutorial explains Reference Table H, focusing on the relationship between temperature and vapor pressure. It discusses how standard pressure affects boiling points and how changes in atmospheric pressure can alter boiling temperatures. The tutorial also compares vapor pressures of different liquids at a specific temperature, highlighting the role of intermolecular forces. Finally, it analyzes boiling points to infer the strength of these forces, providing insights into the properties of various liquids.

What does the graph in Reference Table H primarily relate?

• Temperature to vapor pressure

• Temperature to density

• Pressure to volume

• Volume to density

What happens to the vapor pressure as temperature increases?

• It decreases.

• It remains constant.

• It increases.

• It fluctuates randomly.

What is the significance of the 101.3 kPa line on the graph?

• It shows the maximum vapor pressure.

• It marks the standard pressure related to boiling points.

• It indicates the freezing point of water.

• It represents the average atmospheric pressure.

What is the normal boiling point of water at standard pressure?

• 110 degrees Celsius

• 100 degrees Celsius

• 90 degrees Celsius

• 80 degrees Celsius

How does climbing a mountain affect the boiling point of water?

• It increases the boiling point.

• It decreases the boiling point.

• It has no effect on the boiling point.

• It makes the water freeze.

If the atmospheric pressure is reduced to 70 kPa, what happens to the boiling point of water?

• It increases to 110 degrees Celsius.

• It decreases to 80 degrees Celsius.

• It decreases to 91 degrees Celsius.

• It remains at 100 degrees Celsius.

At 60 degrees Celsius, which liquid has the highest vapor pressure?

• Ethanoic acid

• Ethanol

• Water

• Propanone

What does a higher vapor pressure at a given temperature indicate about a liquid?

• It is more viscous.

• It has a higher boiling point.

• It has weaker intermolecular forces.

• It has a higher density.

What can be inferred about a liquid with a low boiling point?

• It has a high freezing point.

• It is denser than other liquids.

• It has weak intermolecular forces.

• It has strong intermolecular forces.

Which liquid has the strongest intermolecular forces based on boiling points?

• Ethanol

• Ethanoic acid

• Water

• Propanone