What causes water to have a high boiling point quizlet?
Hydrogen bonds, a particularly strong interdipole force, cause a strong attraction between water molecules, resulting in a high boiling point.
What causes the high surface tension low vapor pressure and high boiling point of water quizlet?
Many of water’s unique and important properties, such as its high surface tension, low vapor pressure, and high boiling point, result from hydrogen bonding.
What factors cause the high surface tension low vapor pressure and high boiling point of water?
Cohesion and hydrogen bonding are responsible for water’s low vapor pressure, high boiling point, and high heat capacity. Adhesion is the property of water to stick to surfaces and is responsible for capillary action.
Which best explains why water has a high specific heat quizlet?
Water polarity causes cohesion which pulls other water molecules through the plant. Which statement best explains why water has a high specific heat? Hydrogen bonds increase the amount of energy required for a change in temperature.
What intermolecular forces cause a high boiling point?
As you might expect, the strength of hydrogen bonds and dipole-dipole interactions between molecules is reflected in a higher boiling point.
Which factor is responsible for the unusually high boiling point of water?
The boiling point of water is due to the presence of hydrogen bonds. A hydrogen bond is an attractive force between the positive and negative ends of a molecule. This occurs in polar molecules. This attraction is called the dipole-to-dipole attraction.
What causes the high surface tension and low vapor pressure of water quizlet?
What causes water’s high surface tension and low vapor pressure? Hydrogen bonding.
What causes the high surface tension of water quizlet?
Surface tension is formed due to the cohesive properties of water resulting from hydrogen bonding and water polarity. Cohesion causes high surface tension because it takes a significant amount of energy to bind and break water molecules.
What factor causes high surface tension in water?
The high surface tension of water is due to the hydrogen bonding of the water molecules. … water has very strong intermolecular forces, which result in a lower vapor pressure, but even lower than that of larger molecules with lower vapor pressures. Viscosity is the property of a fluid that has a high resistance to flow.
Why is the boiling point of water so high?
And we all know that the boiling point of water is 100°C. So despite its small molecular weight, water has an incredibly high boiling point. This is because water requires more energy to break hydrogen bonds before boiling.
How does the structure of water explain its high boiling point high heat capacity and high heat of vaporization?
Hydrogen bonds allow ions and other polar molecules to dissolve in water. Thus, water is an excellent solvent. Hydrogen bonds between water molecules increase the heat capacity of water. This means that a lot of additional heat is required to raise the temperature.
Why does water have high boiling point and surface tension?
In general, when intermolecular forces are strong, molecules tend to bond to each other more strongly because they are more strongly attracted to each other. This attraction tends to increase surface tension and boiling point.
Which best explains the high surface tension of water quizlet?
Which of the following best explains the high surface tension of water? D. its hydrogen bonding interactions.
What property of water enables it to be distributed to the highest parts of a tall tree?
They can keep water in the liquid phase to its full height by using root pressure, capillary action, and the cohesive force of water to maintain a water column in a small hollow tube. Xylem. Water moves from the base of the tree to the forest canopy via this conductive tissue.
Which statement best explains why the specific heat of water?
Which statement best explains why the specific heat of water is higher than the specific heat of most other substances? Liquid water requires more heat energy to boil because of ionic bonding.
What happens to boiling point when intermolecular forces increases?
The higher the intermolecular forces between liquid particles, the more difficult it is for them to escape into the vapor phase. This means that more energy is needed to convert from the liquid to the vapor phase. This means that the boiling point is higher.
How do intermolecular force affect the boiling point and freezing point of a compound?
Intermolecular forces can affect the melting point and boiling point of a compound because intermolecular forces increase the bond strength between two or more molecules. In general, the stronger the intermolecular forces, the higher the melting and boiling points of the substance.
How do hydrogen bonds affect boiling points?
Molecules with hydrogen bonds will always have a higher boiling point than similarly sized molecules without -OH or -N-H groups. Hydrogen bonds make molecules “sticky,” so more heat (energy) is required to separate them.
What is responsible for unusually high freezing and boiling point of water?
Water has a higher boiling point because the molecules are held together by hydrogen bonds, which are very strong intermolecular forces.
Why are the freezing and boiling points of water higher than would be expected for a compound of its molecular makeup?
Why are the freezing and boiling points of water higher than would be expected for a compound of that molecular composition? It is due to the unique geometry of the water molecule and van der Waals attraction.
What intermolecular force is acting on water?
Water molecules are held together by hydrogen bonds. Hydrogen bonds are a much stronger type of intermolecular force than is found in many other substances, which affects the properties of water.
How do hydrogen bonds affect water?
Hydrogen bonds cause water to be very attracted to one another. Thus, water is very sticky. We see evidence of the cohesive nature of water every day in droplets and streams of water.
What causes water’s low vapor pressure quizlet?
What causes the low vapor pressure of water? Explanation: Water has dispersion forces and hydrogen bonds between its molecules. The additional forces of attraction prevent water molecules from changing into vapor, resulting in low vapor pressure.
What effect does the surfactant have on the surface tension of water?
2.10. Surfactants reduce the surface tension of water by adsorbing at the liquid-gas interface. They also reduce the interfacial tension between oil and water by adsorbing at the liquid-liquid interface.
What force in liquids causes surface tension quizlet?
Cohesive forces between liquid molecules are responsible for the phenomenon known as surface tension.
What property properties contributes to the high surface tension of water?
Water has both cohesive and adhesive properties. Cohesion is responsible for surface tension, the tendency of a liquid surface to resist rupture when placed under tension or stress. Water also has adhesive properties, allowing it to stick to substances other than itself.
Which property cohesion or adhesion causes surface tension in water explain how this takes place?
Cohesion creates a surface tension in water by joining hydrogen bonds. Because water is attracted to other molecules, cohesion pulls water toward other molecules.
Which type of force causes surface tension?
Cohesive forces between liquid molecules are responsible for the phenomenon known as surface tension.
Which would increase more the boiling point of water?
Water molecules require more energy to generate enough pressure to escape the liquid boundary. The more salts (or solutes) are added to water, the higher the boiling point.
When the temperature rises and water starts to boil the molecules gain more energy what do you call this type of energy as they move faster?
The movement of thermal energy from a substance of higher temperature to one of lower temperature is called heat. When a substance is heated, it gains thermal energy. Thus, its particles move faster and its temperature increases.
Why does water have a high heat of evaporation?
Water has a high heat of evaporation because hydrogen bonds are readily formed between the oxygen of one molecule and the hydrogen of another molecule.
What causes water to have a high boiling point quizlet?
Hydrogen bonds, a particularly strong interdipole force, cause a strong attraction between water molecules, resulting in a high boiling point.
Which best explains why water has a high specific heat quizlet?
Water polarity causes cohesion which pulls other water molecules through the plant. Which statement best explains why water has a high specific heat? Hydrogen bonds increase the amount of energy required for a change in temperature.
What is a cause of polarity in water molecules?
Polarity: The net charge of a water molecule is zero, but because of its shape, water is polar. The hydrogen end of the molecule is positive and the oxygen end is negative. This causes water molecules to attract each other and other polar molecules.
How is the polarity of water important for transpiration quizlet?
How is water polarity important for transpiration? Polarity causes cohesion between water molecules, pulling them toward each other as they move upward. What is the function of the cuticle? Prevents water loss.
Which property of water is responsible when water gets distributed to the different parts of a plant?
They can do this because 1) water molecules really like each other (a property called cohesion) and 2) prefer to stick to other substances (a property called adhesion). Visualized before “straw.”
What property is responsible when water get to the leaves in the top of the tallest trees against the force of gravity?
Capillary action helps bring water into the roots. However, capillary action can “draw” water only a short distance and then gravity cannot be overcome. To water all branches and leaves, the forces of adhesion and cohesion act in the xylem of the plant, moving the water to the farthest leaves.
What property of water facilitates movement from the roots of a tree to the very top of the tree?
The tension theory of cohesion-SAP upwelling describes how water is drawn from the roots to the top of the plant. Evaporation from leaf pith cells produces a negative water potential gradient that causes water and minerals to move upward from the roots through the xylem.
What is the general direction of energy flow at Earth’s surface for fluids air and water in motion?
What is the general direction of energy flow at the Earth’s surface for moving fluids (air and water)? Warm fluids flow toward the equator, while cold fluids flow east or west.
What is water molecules are attracted to the molecules in the wall of the glass container?
Water molecules are attracted to molecules on the walls of glass containers. Water flows through the container because water is sticky due to cohesion and adhesion. Small insects, such as those in water, can walk on water because there is not enough to penetrate the surface of the water.
Which statement best explains why water is essential for all living things quizlet?
Which statement best explains why water is essential for all living organisms? Water is necessary for cellular function.
What increases boiling point?
In general, larger molecules have higher boiling points than smaller molecules of the same type, indicating that the dispersive force increases with mass, number of electrons, number of atoms, or a combination thereof.
Which intermolecular force would cause the highest boiling point?
Intermolecular forces and stability: example question #5 is an ionic compound. Therefore, it has the highest boiling point of any of these molecules. Ionic forces are stronger against covalent forces, leading to the higher boiling points observed among these compounds.
What does a high boiling point temperature indicate about a substance?
Simply put, we measure the temperature at which a chemical boils. As with the melting point, a higher boiling point indicates greater intermolecular forces and therefore less vapor pressure.
What does a high freezing point mean?
If the intermolecular forces between molecules are strong, the freezing point is higher. If the forces are weak, the freezing point is relatively low. The freezing point of a liquid or the melting point of a solid occurs at the temperature at which the solid and liquid phases are in equilibrium.
Which state of matter is the strongest?
Explanation: Solids are held together by the strongest attraction between them. This strengthens the intermolecular bonds and results in the strongest state of matter.
What is the relationship between polarity and boiling point?
Principle: The greater the force of attraction, the higher the boiling point, or the greater the polarity.
What type of intermolecular force does water have?
Water is a strong solvent because of the strong hydrogen bonding dipole-dipole intermolecular forces that give water high surface tension and heat of evaporation.
How are boiling points affected by intermolecular forces?
Intermolecular forces can affect the melting point and boiling point of a compound because intermolecular forces increase the bond strength between two or more molecules. In general, the stronger the intermolecular forces, the higher the melting and boiling points of the substance.
Which factor is responsible for the unusually high boiling point of water?
The boiling point of water is due to the presence of hydrogen bonds. A hydrogen bond is an attractive force between the positive and negative ends of a molecule. This occurs in polar molecules. This attraction is called the dipole-to-dipole attraction.
What do you notice with the boiling point and freezing point of the different solutions?
The boiling point of a solution is higher than the boiling point of a pure solvent. The freezing point of the solution is lower than that of the pure solvent. Ionic compounds split into ions and form more particles when dissolved. Covalent compounds remain as complete molecules when dissolved.
Why is water the strongest intermolecular force?
A property of water is that it has strong intermolecular forces as a result of hydrogen bonding and the dipole moments produced by the strong electronegative oxygen and hydrogen.
What causes hydrogen bonding in water?
In the case of water, hydrogen bonds are formed between adjacent hydrogen and oxygen atoms of adjacent water molecules. The attraction between individual water molecules creates a bond known as a hydrogen bond.