which law of thermodynamics is to ddo with bernoullis principle?

Bernoulli's principle is related to the first law of thermodynamics, also known as the law of energy conservation. This principle states that the total energy of a fluid flowing through a pipe remains constant along the flow path, with energy being conserved between kinetic energy, potential energy, and pressure energy.

Bernoulli's principle is directly related to the First Law of Thermodynamics or the Law of Conservation of Energy.

Bernoulli's Principle states that as the speed of a fluid (liquid or gas) increases, its pressure decreases. This is because as the fluid flows, its kinetic energy (energy of motion) increases, and according to the First Law of Thermodynamics, the total energy must be conserved. To compensate for the increased kinetic energy, the pressure energy (potential energy) within the fluid must decrease.

The First Law of Thermodynamics, on the other hand, states that the total energy of a closed system remains constant, and that any change in energy within the system is transferred through heat or work. In Bernoulli's principle, the fluid is a closed system, and the decrease in pressure is a result of the increase in kinetic energy.