Unit 2 AOS 1 - Water Properties Quiz (2)

What is the specific heat capacity of water?

• 3.75 J/g°C

• 2.50 J/g°C

• 6.32 J/g°C

• 4.18 J/g°C

Explain why water has a high specific heat capacity.

• Water has a low specific heat capacity due to lack of hydrogen bonding

• Hydrogen bonding and ability to absorb and release large amounts of heat without a significant change in temperature.

• Water has a high specific heat capacity because it is a nonpolar molecule

• Water has a high specific heat capacity because it cannot absorb or release heat

How does the specific heat capacity of water affect the climate of coastal areas?

• It leads to increased precipitation in coastal areas

• It has no impact on the climate of coastal areas

• It moderates the climate by keeping temperatures relatively stable.

• It causes extreme temperature fluctuations

What is the density of water and how does it relate to buoyancy?

• The density of water is 1 g/cm3 at 4°C, and it relates to buoyancy by determining whether an object will float or sink in water.

• The density of water is 2 g/cm3 at 10°C, and it relates to buoyancy by making objects lighter in water

• The density of water is 3 g/cm3 at 0°C, and it relates to buoyancy by causing objects to dissolve in water

• The density of water is 0.5 g/cm3 at 20°C, and it relates to buoyancy by attracting objects to the surface of the water

Explain why ice floats on water despite being a solid.

• More dense than liquid water

• It is not affected by water density

• Less dense than liquid water

• It is not a solid

How does the density of water change with temperature?

• The density of water fluctuates randomly with temperature.

• The density of water remains constant regardless of temperature.

• The density of water decreases with increasing temperature.

• The density of water increases with increasing temperature.

What are intermolecular forces and how do they affect the properties of water?

• Intermolecular forces are the forces of attraction between molecules, and they only affect the properties of water through evaporation and condensation.

• Intermolecular forces are the forces of attraction between atoms within a molecule, and they affect the properties of water through covalent bonding and ionic interactions.

• Intermolecular forces are the forces of repulsion between molecules, and they have no effect on the properties of water.

• Intermolecular forces are the forces of attraction between molecules, and they affect the properties of water through hydrogen bonding, surface tension, cohesion, and heat absorption.

Compare and contrast the intermolecular forces in water and in other substances.

• Water has London dispersion forces, while other substances have metallic bonding.

• Water has covalent bonding, while other substances have ionic bonding.

• Water has hydrogen bonding, while other substances may have different types of intermolecular forces.

• Water has dipole-dipole forces, while other substances have van der Waals forces.

What is latent heat capacity and how does it relate to the phase changes of water?

• Latent heat capacity is the amount of cold energy required to change the phase of a substance without changing its temperature. It relates to the phase changes of water by determining the amount of cold energy needed to change water from one phase to another.

• Latent heat capacity is the amount of heat energy required to change the color of a substance without changing its temperature. It relates to the phase changes of water by determining the amount of color needed to change water from one phase to another.

• Latent heat capacity is the amount of heat energy required to change the phase of a substance without changing its temperature. It relates to the phase changes of water by determining the amount of heat energy needed to change water from one phase to another, such as from solid to liquid (melting) or from liquid to gas (vaporization).

• Latent heat capacity is the amount of heat energy required to change the taste of a substance without changing its temperature. It relates to the phase changes of water by determining the amount of taste needed to change water from one phase to another.

Explain the concept of latent heat of fusion and give an example related to water.

• The latent heat of fusion is the energy required to change a substance from a liquid to a gas state at its boiling point without changing its temperature. An example related to water is that it takes 200 joules of energy to vaporize 1 gram of water into steam at 0°C.

• The latent heat of fusion is the energy required to change a substance from a gas to a liquid state at its condensation point without changing its temperature. An example related to water is that it takes 500 joules of energy to condense 1 gram of steam into water at 100°C.

• The latent heat of fusion is the energy required to change a substance from a liquid to a solid state at its boiling point without changing its temperature. An example related to water is that it takes 100 joules of energy to freeze 1 gram of water into ice at 100°C.

• The latent heat of fusion is the energy required to change a substance from a solid to a liquid state at its melting point without changing its temperature. An example related to water is that it takes 334 joules of energy to melt 1 gram of ice into water at 0°C.