Question

Which of the following is not a property of a gas?
A. The gases have very high compressibility. On applying pressure, gas molecules come closer and decrease the volume of a gas.
B. Gases can expand to fill the containers.
C. Gases have a specific shape or volume.
D. They are less dense than solids or liquids.

Answer 1

Hint: To answer this question, we must know about the properties of gas and there are three states of matter: they are solid, liquid and gas. Different states of matter have their own characteristics and properties. The property exhibited by gas is known as property of gas.

Complete step by step answer:
Gaseous state is one of three states of matter. Solid-state has its own properties and characteristics.
Here, option A.
The gases have very high compressibility. When you apply pressure to a gas, the molecules close in on each other, reducing the volume of the gas.
Pressure is an important criterion for defining a gas. The gas pressure is the force per unit area that it exerts on the container in which it is contained. The force exerted by the gas increases as the pressure increases, and vice versa. A barometer, which provides us with the barometric pressure, is used to measure the pressure of a gaseous state in mmHg (millimetres of mercury).
Thus, the gases have very high compressibility. On applying pressure, gas molecules come closer and decrease the volume of a gas.
Option B.
Gases can expand to fill the containers.
The gaseous state can also expand due to the free movement of gas molecules, which allows them to take on any shape based on the container they are in, thus filling the container's volume.
Thus, gases can expand to fill the containers.
Option C.
Gases have a specific shape or volume.
There is no fixed volume or shape in the gaseous state. It means that there is no structure in gas. The gaseous pressure is caused by countless collisions of molecules on the container walls. As a result, the shape and volume of a gas state are both determined by the container in which it is contained.
Thus, we can say that Gases don’t have a specific shape or volume.
Option D.
They are less dense than solids or liquids.
When compared to other states of matter, such as solids and liquids, they have a lower density. Gas particles move randomly and quickly against each other, with no fixed position, due to their low density. Because the molecules are separated by such a large distance, their collision has no effect on their movement. This matter is also fluid due to the low density of gas.
Thus, we can say that They are less dense than solids or liquids.
So, from the above we can conclude that Option C is not a property of gas.
Hence, the correct option is C.

Note:
Gas Laws
Surprisingly, no matter how different their chemical properties are, all gases obey gas laws somewhere. Several scientists devised gas laws that took into account pressure, amount, temperature, and volume of a gas state. These laws aid in defining the relationship between these variables. Here are the five gas laws:
Boyle's Law - The Pressure-Volume Law
Charles' Law - The Temperature-Volume Law
Avogadro's Law - The Volume Amount Law
Gay-Lussac's Law - The Pressure Temperature Law
The Ideal Gas Law