15.2 The First Law of Thermodynamics and Some Simple Processes - College Physics | OpenStax
Describe the processes of a simple heat engine. Explain the differences among the simple thermodynamic processes—isobaric, isochoric, isothermal, a
Quantum Physics Pictures
Quantum physics is a term that's interchangeable with "quantum mechanics." It deals with matter and energy at the smallest scale available: the atomic and subatomic realms. Take a look at these quantum physics pictures.
First Law of Thermodynamics
First Law of Thermodynamics states that energy in the universe is the neither created nor destroyed, thus the energy of the universe is a constant.
Gibbs (Free) Energy
Gibbs free energy, denoted G , combines enthalpy and entropy into a single value. The change in free energy, ΔG , is equal to the sum of the enthalpy plus the product of the temperature and entropy of the system. ΔG can predict the direction of the chemical reaction under two conditions: constant temperature and constant pressure.
Thermodynamic Potentials Thermodynamic potentials are used to measure the energy of a system in terms of different variables because often we can only measure certain properties of the system. For example we might know the pressure and temperature of system but not the volume or the entropy. Thermodynamic potentials allow us to measure more state variables of the system. The thermodynamics potentials are the internal energy,enthalpy, Gibbs Free Energy and the Helmholtz Free Energy. These…