Surface area does not significantly affect the vapor pressure of a liquid.

Surface area does not significantly affect the viscosity of a liquid.

Helium (He) behaves most ideally under standard conditions due to its low intermolecular forces.

CO2 has the highest density at STP among the given gases.

Helium (He) behaves most ideally due to its small size and weak intermolecular forces.

Hydrogen (H2) has the lowest molar mass and thus the highest rate of diffusion according to Graham's law.

Crystalline solids have a definite melting point due to their ordered structure.

A liquid in a closed container has a fixed volume but can exert pressure.

In equilibrium, a liquid maintains constant density, temperature, and pressure.

Supercooled liquids can exist below their freezing point without solidifying.

Amorphous solids have short-range order but lack long-range order.

Non-Newtonian fluids exhibit a change in viscosity with the rate of shear applied.

Solids have a definite shape and are not compressible; they do not flow like liquids or gases.

Sugar is an example of a crystalline solid, characterized by a well-ordered structure.

Dissolving sugar in water is a physical change as it does not alter the chemical composition.

Gases do not have a definite volume; they expand to fill their container.

Liquids have a definite volume but take the shape of their container, hence they do not have a definite shape.

The kinetic molecular theory assumes that gas particles do not attract each other, which is why option 3 is NOT a postulate.

The kinetic molecular theory assumes that gas particles do not attract or repel each other.

Water has a higher boiling point due to strong hydrogen bonding.

Mercury has the highest surface tension due to strong cohesive forces.

Glycerol is a thick liquid and has a higher viscosity compared to the others.

Benzene has a lower boiling point compared to water, ethanol, and hexane.

Benzene is a non-polar liquid, while the others are polar.

Hexane is a non-polar solvent, while the others are polar.

Ethanol can form strong hydrogen bonds due to the presence of an -OH group.

Ethanol has a lower surface tension compared to water and mercury due to its molecular structure.

Liquids have a definite volume but take the shape of their container.

Liquids are generally incompressible, so compressibility is not a property associated with them.

Liquids have a fixed volume but do not have a fixed shape; they take the shape of their container.