AP BIOLOGY

Detailed explanation-1: -In gases, the particles are very loosely packed and the intermolecular force of attraction is very weak. So the gas molecules can break loose easily from any boundary and can fill up any space. Hence, they do not have any definite volume.

Detailed explanation-2: -Gases do not have a definite shape or volume because the molecules in gases are very loosely packed, they have large intermolecular spaces and hence they move around. The force of attraction between molecules is also very less, as a result gases acquire any shape or any volume.

Detailed explanation-3: -Due to the weak internuclear force of attraction, the gaseous particles have enough kinetic energy and they can move in any direction without any restrictions. Hence, the gases do not have a fixed shape and fixed volume.

Detailed explanation-4: -Gases have the following characteristics: No definite shape (takes the shape of its container). No definite volume. Particles move in random motion with little or no attraction to each other.

Detailed explanation-5: -C) Gases have no definite volume and no definite shape.