Types of Thermodynamics systems

Presentation done by Abrar Sharieff

Dheeraj Ajeeth

Rohith reddy Nithin

What is Thermodynamics?

OThermodynamics: A set of of mathematical models and concepts that allow us to describe the way changes in the system state (temperature, pressure, and composition) affect equilibrium.

O Can be used to predict how rock-forming systems will respond to changes in state

O Invert observed chemical compositions of minerals and melts to infer the pressure and temperature conditions or origin

Types of Thermodynamic System:

O Thermodynamic systems can be broadly classified into three types. They are:

O Open systemO Closed systemO Isolated system

1. Open System:O An open system

is a thermodynamic system which allows both mass and energy to flow in and out of it, across its boundary. The image below illustrates open system.

Example of Open system:

O Water heated in an open container – Here, heat is the energy transferred, water is the mass transferred and container is the thermodynamic system. Both heat and water can pass in and out of the container.

2. Closed System:

O A closed system allows only energy (heat and work) to pass in and out of it. It does not allow mass transfer across its boundary. The following image shows a closed system:

Example of Closed system:

O Water heated in a closed vessel – Here only heat energy can pass in and out of the vessel.

3. Isolated System:

O An isolated system does not interact with its surroundings. It does not allow both mass and energy transfer across its boundary. It is more restrictive.

O In reality, complete isolated systems do not exist. However, some systems behave like an isolated system for a finite period of time.

Example of Isolated system:

O A perfectly insulated, rigid and closed vessel is an example of an isolated system as neither mass nor energy can enter or leave the system.

Thank You