Question

The property to flow is unique to fluids. Which one of the following statements is correct?

• A. Only gases behave like fluids
• B. Gases and solids behave like fluids
• C. Gases and liquids behave like fluids
• D. Only liquids are fluids

Answer 1

The correct option is C

Gases and liquids behave like fluids

Explanation for correct option:

(C) Gases and liquids behave like fluids

• Fluids usually correspond to gases and liquids. Because the molecules of liquids and gases interact less, they both have a high permeability.
• They also require a container to hold them. Solids cannot flow in the same way that fluids do.
• Liquids are states of matter that are capable of flowing. Flow describes the motion of matter particles as long as there is the sufficient distance in between particles that make up liquid and gas for the liquid or gas to flow.
• Particle mobility is restricted in solids due to the strong forces of attraction that hold the particles together.
• As a result, the gas and liquids behave similarly to fluid
• As a result, this is the correct option.

Explanation for incorrect option:

(A) Only gases behave like fluids

• Not only gases but also liquids can behave like fluids So, so it is an incorrect option.

(B) Gases and solids behave like fluids

• Gases can behave like fluids, but in solid the particles are closely paced so, sold cannot behave like fluids. So, this is an incorrect option.

(D) Only liquids are fluids

• Not only liquids but also gases can behave like fluids So, so it is an incorrect option.

Hence, the correct option is (C) Gases and liquids behave like fluids.