Page 1: Introduction to Thermodynamics
Definition:
Thermodynamics is the branch of physics that deals with the relationships between heat and other
forms of energy.
It studies how energy is transferred in physical systems and the laws governing these transfers.
Importance:
Essential for understanding physical processes in engineering, chemistry, and physics.
Applications in engines, refrigerators, and various industrial processes.
Page 2: Laws of Thermodynamics
Zeroth Law of Thermodynamics:
If two systems are in thermal equilibrium with a third system, they are in thermal equilibrium with each
other.
, This law establishes the concept of temperature.
First Law of Thermodynamics:
Statement: Energy cannot be created or destroyed, only transformed.
Mathematical expression: ΔU = Q - W
ΔU = change in internal energy.
Q = heat added to the system.
W = work done by the system.
Page 3: Key Concepts
System:
Defined as a portion of the universe under study.
Types: