### Saturated and Unsaturated Vapour Pressure

Saturated and Unsaturated Vapour Pressure What is a saturated solution? If in a water sugar solution, the amount of dissolved sugar is equal to the maximum amount that a given amount of water can dissolve at a certain temperature, then that solution is called a saturated solution. What is an unsaturated solution? If in a water sugar solution, the amount of dissolved sugar is less than that amount that a given amount of water can dissolve at a certain temperature, then that solution is called a saturated solution. What is saturated vapour? At a certain temperature in an enclosed space, if the amount of vapour present is equal to the maximum vapour capacity of that space, then that vapour is called saturated vapour. What is unsaturated vapour? At a certain temperature in an enclosed space, if the amount of vapour present is less than the maximum vapour capacity of that space, then that vapour is called unsaturated vapour. What is vapour pressure? Vapour enclosed in a container behaves

## What is work?

If because force-displacement happens then the product of force and component of displacement at the direction of force due to force is work.

Work is the product of applied force on a body and its displacement along the direction of a force.

Unit of work: J (Joule)

Dimension of work, [W] = ML2T-2

## What is Joule?

If due to the appliance of one-newton force at the direction of force the application point of force moves 1 meter then it is 1 joule of work.

## What is positive work?

If due to force the application point of force moves along the direction of force or the component of displacement is towards the direction of force then it is said to be work done by force or positive work.

## What is negative work?

If due to force the application point of force moves in the opposite direction of force or the component of displacement is at the opposite direction of force then it is said to be work done on force or negative work.

## What do you mean by the work 50 J?

The work measuring 50 J means 50 m of displacement of a body towards the direction of a force measuring 1 N. It further means 1 m of displacement of the body toward the direction of a force measuring 50 N.