Question

Brownian movement explains the \textit{property of colloidal solutions:}

• A. Optical
• B. Electrical
• C. Kinetic
• D. Mechanical

Hint:

Brownian motion is a result of the kinetic energy of particles in a colloidal solution.

Answer 1

The Correct Option is C

The Brownian movement refers to the random motion of particles suspended in a fluid (liquid or gas) resulting from their collision with fast-moving molecules in the fluid. This phenomenon is vital for understanding various properties of colloidal solutions. Here's why:

The characteristic property of colloidal solutions explained by Brownian movement is their kinetic nature. In colloidal solutions, dispersed particles are subject to continuous jostling due to thermal energy, leading to perpetual and erratic movement.

Steps explaining why this property is kinetic:

1. Random Motion: The kinetic energy of the colloidal particles results in random movement. These motions are evidence of the constant kinetic energy inherent in the particles.
2. Collision Impact: Each particle's kinetic energy causes it to collide with the surrounding medium molecules constantly, maintaining the suspension of particles.
3. Energy Transmission: The energy from temperature (thermal) fluctuations is transferred to the colloidal particles, causing continuous motion.

This random motion ensures that colloidal particles do not settle and remain suspended in the solution. Hence, Brownian movement is closely associated with the kinetic properties of colloidal solutions.