Consider the following statements:
- Particles of matter intermix on their own.
- Particles of matter have force acting between them.
Which of the statements given above is/are correct ?
1 only
2 only
Both 1 and 2
Neither 1 nor 2
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC CDS-2 – 2019
Statement 1: Particles of matter intermix on their own due to their constant motion. This phenomenon is known as diffusion and is responsible for mixing substances when brought into contact, e.g., sugar dissolving in water, or smells spreading in the air.
Statement 2: Particles of matter have forces acting between them. These are intermolecular forces of attraction (like Van der Waals forces) and repulsion, which hold the particles together in solids and liquids, and are weaker in gases. These forces influence the physical state and properties of matter.