thermo dynamics defination
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Answer:
➡️Thermodynamics is a branch of physics which deals with the energy and work of a system.
It was born in the 19th century as scientists were first discovering how to build and operate steam engines. Thermodynamics deals only with the large scale response of a system which we can observe and measure in experiments.
➡️Traditionally, thermodynamics has stated three fundamental laws: the first law, the second law, and the third law. A more fundamental statement was later labelled the 'zeroth law'.
➡️FIRST LAW:-
The first law of thermodynamics says that when energy passes into or out of a system (as work, heat, or matter), the system's internal energy changes in accord with the law of conservation of energy. Equivalently, perpetual motion machines of the first kind (machines that produce work with no energy input) are impossible.
➡️SECOND LAW:-
The second law of thermodynamics can be expressed in two main ways. In terms of possible processes, Rudolf Clausius stated that heat does not spontaneously pass from a colder body to a warmer body. Equivalently, perpetual motion machines of the second kind (machines that spontaneously convert thermal energy into mechanical work) are impossible. In terms of entropy, in a natural thermodynamic process, the sum of the entropies of interacting thermodynamic systems increases.
➡️THIRD LAW:-
The third law of thermodynamics states that a system's entropy approaches a constant value as the temperature approaches absolute zero. With the exception of non-crystalline solids (glasses) the entropy of a system at absolute zero is typically close to zero.