EFFECTS OF IMFA ON THE PROPERTIES OF A SUBSTANCE

Question 1

The properties of molecules depend on the strength of their __________

Answer 1

Intermolecular Forces (IMFA)

Question 2

these forces dictate how molecules interact and behave in different conditions.

Answer 2

Intermolecular Forces (IMFA)

Question 3

is the measure of how much solute can dissolve in a solvent at a given temperature and pressure, resulting in a uniform solution.

Answer 3

Solubility

Question 4

It varies for different solutes and solvents; for example, sugar dissolves well in water, while oil does not. _________ is influenced by factors such as temperature, pressure, and the chemical nature of the substances involved.

Answer 4

Solubility

Question 5

It is a Solid

Answer 5

Solute

Question 6

It is a Liquid

Answer 6

Solvent

Question 7

Water as ________

Answer 7

Solvent

Question 8

if the _____ and _______ exhibits the same imfa, they form solution. However, substances that has distinct imfa most likely to not dissolve.

Answer 8

Solute, Solvent

Question 9

Like Dissolves Like

Non Polar Dissolves Non Polar

Question 10

Opposite cant dissolve opposite

Non Polar cant dissolve Polar

Question 11

When molecules have strong ________ ______ __ _______ , they are packed close together.

Answer 11

Intermolecular Forces of Attraction

Question 12

Strong imfa often exist as condensed phase (solid or liquid) at room temperature. When molecules have a weak imfa, they are far apart from each other and they often exist as gas at room temperature.

Answer 12

PHASES OF MOLECULE AT ROOM TEMPERATURE

Question 13

Temperature at which the substances changes from solid to liquid under standard atmospheric pressure.

Answer 13

Melting Point

Question 14

At this specific temperature, the molecules in the solid gain enough energy to overcome intermolecular forces, allowing them to move freely and transition into the liquid phase.

Answer 14

Melting Point

Question 15

The _______ _____ varies for different substances and is influenced by factors like pressure and molecular structure.

Answer 15

Melting Point

Question 16

substances with stronger IMFA have higher melting point compared to those who have weaker IMFA.

Question 17

is the temperature at which a liquid transitions to a gas at a given atmospheric pressure.

Answer 17

Boiling Point

Question 18

At this temperature, the vapor pressure of the liquid equals the surrounding pressure, allowing bubbles of vapor to form within the liquid.

Answer 18

Boiling Point

Question 19

The ________ _____ varies for different substances and is influenced by factors such as atmospheric pressure and impurities.

Answer 19

Boiling point

Question 20

The _______ the boiling point is, the more likely it is to evaporate and turn into gas. While having _________ boiling point means it can tolerate heat more longer than those who have weaker boiling point.

Answer 20

Weaker, High

Question 21

substances with stronger IMFA have ________ boiling point compared to those who have weaker IMFA.

Answer 21

Higher

Melting Point

Question 22

the tendency of a liquid to acquire the least possible surface area, allowing small objects to float on it.

Answer 22

Surface Tension

Question 23

this tension is like a skin on top of the liquid, holding its shape and creating a surface that allows for small insects and light objects to float in it. It’s because the water molecules are sticking together tightly.

Answer 23

Surface Tension

Question 24

molecules with ________ _____ will exert greater cohesive forces and acquire less surface area or higher surface tension than those with weaker IMFA.

Answer 24

Stronger, IMFA

Question 25

It is the measure of a liquid’s resistance to flow. It describes how thick or sticky a liquid is; for example, honey has a higher ________ than water because it flows more slowly.

Answer 25

Viscosity

Question 26

is influenced by factors such as temperature and the molecular structure of the liquid.

Answer 26

Viscosity

Question 27

The stronger the _______ is, the more likely it is to have a slow resistance. Meanwhile, on the other hand, weaker _________ tend to have fast resistance like water.

Answer 27

Viscosity

Question 28

molecules with stronger IMFA have greater resistance to flow than those with weaker IMFA.

Answer 28

Viscosity

Question 29

is the pressure exerted by the vapor (gas) of a liquid when it is in equilibrium with its liquid phase in a closed container.

Answer 29

Vapor Pressure

Question 30

This means that some molecules of the liquid escape into the gas phase, while others return to the liquid phase.

Answer 30

Vapor Pressure

Question 31

The higher the _______ ______ of a liquid, the more likely it is to evaporate. A high _________ _____ means that a significant number of molecules have enough energy to escape from the liquid phase into the gas phase.

Answer 31

Vapor Pressure

Question 32

This typically occurs at higher temperatures or in substances with weaker intermolecular forces, allowing more molecules to break free and become vapor.

Answer 32

Vapor Pressure

Question 33

molecules with stronger IMFA have less tendency to escape as gas.

Answer 33

Vapor Pressure