Question

Analyse the following statements and choose the correct option.

(i) Gas particles have larger interparticle spaces as compared to liquids and solids.
(ii) Gas particles move faster at higher temperature.
(iii) Gas is the only state of matter which is fluid.
(iv) The effect of pressure on the particles of gases is the same as that on the particles of solids.
(v) Gases occupy more volume for the same number of particles, as compared to solids and liquids.

• A. (i), (ii) and (v)
• B. (ii), (iii) and (iv)
• C. (i), (iii) and (iv)
• D. (i), (ii), (iv) and (v)

Answer 1

The correct option is A (i), (ii) and (v)

• Gas particles move around randomly at high speed due to least interparticle force of attraction, and have greater interparticle spaces as compared to solids and liquids.
• As the temperature increases, the kinetic energy of the gas particles increases, thus, the rate of diffusion also increases.
• Liquids and gases can move freely and have a tendency to flow, hence, known as fluids.
• Gases are highly compressible upon the application of pressure whereas solids are almost incompressible as the interparticle force of attraction is weak in gases but very strong in solids.
• Due to least interparticle force and largest interparticle spaces, gas particles are free to move rapidly and expand to fill any volume.