What is venturi-meter? Derive an expression for the rate of flow of a liquid using this device.

The rate of flow of the liquid is the product of

What is mean free path? Derive an expression for mean free path.

What is electric power ? Derive an expression for the same. Give its SI unit.

The rate of flow of a liquid through a capillary tube is

Derive an expression for the rate constant in the first order reaction.

Using the method of dimensions, derive an expression for rate of flow (v) of a liquied through a pipe of radius (r ) under a pressure gradient (P//I) Given that V also depends on coefficient of viscosity (eta) of the liquied.

Derive an expression for excess pressure inside a drop of liquid.

What is laminar flow of a liquid ?

Derive an expression for the intergated rate equation for the first order reaction.