First Law of Thermodynamics Formula
According to this law, some heat supplied to the system is used to change the internal energy, while the remaining is used by the system to perform work. The mathematical expression of the first law of thermodynamics is given by:
ΔQ = ΔU + ΔW
Where
- ΔU is the change in internal energy of the system,
- ΔW is the work done by the system, &
- ΔQ is the heat supplied to the system.
First Law of Thermodynamics
First Law of Thermodynamics adaptation of the Law of Conservation of Energy differentiates between three types of energy transfer: Heat, Thermodynamic Work, and Energy associated with matter transfer. It also relates each type of energy transfer to a property of a body’s Internal Energy.
The First Law of Thermodynamics states that energy cannot be created or destroyed however, it can be transferred from one form to another. Also, according to the first law of thermodynamics, Heat is a form of energy and the thermodynamic processes (like Isothermal, Isochoric, Adiabatic, Isothermal, and Quasi-Static Processes.) obey the Law of Conservation of Energy.
Table of Content
- What is the First Law of Thermodynamics?
- First Law of Thermodynamics Formula
- Limitations of First Law of Thermodynamics
- First Law of Thermodynamics for a Closed System
- Solved Examples
- FAQs