Question

Gases have low ________ and high _____________.
\[{\text{A}}{\text{.}}\,{\text{density}}\,{\text{;compressibility}}\]
\[{\text{B}}{\text{.}}\,{\text{compressibility}}\,{\text{;}}\,{\text{density}}\]
\[{\text{C}}{\text{.}}\,{\text{compressibility}}\,{\text{;}}\,{\text{inter - molecular}}\,{\text{force}}\]
\[{\text{D}}{\text{.}}\,{\text{compressibility}}\,{\text{;}}\,{\text{volume}}\]

Answer 1

Hint:In the fundamental states of matter (like solid, liquid, gas and plasma) the gas is one them. A pure gas can be made up of single atoms (for example, noble gas like neon), elementary molecules made up of one type of atom (for example, oxygen), or compound molecules made up of a variety of atoms (for example, carbon dioxide).

Complete step-by-step answer:A gas mixture such as air contains a large number of pure gases. What distinguishes a gas from liquids and solids is the extensive separation of the individual gas particles.

We know that the gas molecules are having weak intermolecular forces. Therefore, they have huge volume and will be low in density. So, their intermolecular distances are large and it can be compacted easily therefore, the gas molecules can get compressed easily.
The gases have low density and high compressibility.

Additional information:Density is denoted as mass by volume. Suppose if there is 2 insoluble liquid mixtures like oil and water, in that case, we observe that the denser liquid will be in the bottom and less dense liquid in the top. The purpose of this lesson is to show how densities are defined, measured and used and to ensure that you understand the closely related concepts of buoyancy and specific gravity and the role they play in our lives and the environment.

So, the correct option is \[{\text{A}}{\text{.}}\,{\text{density}}\,{\text{;compressibility}}\].

Note:The density is denoted as \[\rho \] (rho) or \[D\] symbol. The density is used as one of its most important and easily measured physical properties. Densities are used for the identification of a pure substance; it is also used to characterize the compound and estimation of the composition of many types of mixtures.
\[\rho \, = \,\dfrac{{mass}}{{volume}}\]