Question

(I) Ink mixes faster in hot water than in cold water.​
(II) Diffusion occurs at a higher pace at higher temperatures.​
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Identify the correct option out of the following

• A. Both (i) and (ii) are correct and (ii) is the correct explanation of (i)
• B. Both (i) and (ii) are correct and (ii) is not the correct explanation of (i)
• C. (i) is incorrect and (ii) is correct
• D. Both are incorrect

Answer 1

The correct option is A Both (i) and (ii) are correct and (ii) is the correct explanation of (i)

• The inter-mixing of particles of matter is known as diffusion. The intermixing of particles increases with an increase in the kinetic energy of the particles (movement of particles). Kinetic energy is directly proportional to temperature.
• Thus, diffusion occur at a higher pace at high temperature.
• The particles of hot water have more kinetic energy that those of cold water.
• Thus, intermixing of ink in hot water happens at a faster rate than in cold water.​
• Therefore, both Statement I and statement II are true, and statement II is the correct explanation of statement I.