Thermodynamics – Notes
Basic Terms and Concept – I
The branch of science that deals with the study of different forms of energy and the quantitative relationship between them is known as thermodynamics.
A system in thermodynamics refers to that part of the universe in which observations are made.
The part of the universe that is not a part of the system but can interact with the system is called surroundings.
The part that separates the system from the surroundings is known as boundary.
A system is said to be open if it can exchange both energy and matter with its surroundings.
A system is said to be closed if it can exchange energy but not matter with its surroundings.
A system is said to be isolated if it can exchange neither energy nor matter with its surroundings.
Basic Terms and Concept – II
The state of a system means the condition of the system in terms of observable properties such as temperature, pressure and volume.
Extensive properties are properties that depend upon the quantity of the matter contained in a system.