Question

Define the law of thermodynamics​

Answer 1

Law of thermodynamics​

There are 3 law of thermodynamics​.

• The First Law of Thermodynamics

It states that heat is a form of energy, and thermodynamic processes are therefore subject to the principle of conservation of energy. This means that heat energy cannot be created or destroyed.

• The Second Law of Thermodynamics

It states that processes that involve the transfer or conversion of heat energy are irreversible.It is about the quality of energy. It states that as energy is transferred or transformed, more and more of it is wasted.

• The Third Law of Thermodynamics

It states that the entropy of a system at absolute zero is a well-defined constant. This is because a system at zero temperature exists in its ground state, so that its entropy is determined only by the degeneracy of the ground state.

Answer 2

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⭐The Laws of Thermodynamics ⭐

=> The Zeroth Law of Thermodynamics states that "Two systems in thermal equilibrium with a third system separately, are in thermal equilibrium with each other..."

=> The First Law of Thermodynamics states that "Energy can neither be created nor be destroyed, but can only be converted from one form to another, and can only be transferred from one system to another..."

=> The Second Law of Thermodynamics states that "The entropy of the universe always increases in every spontaneous natural process..."

According to Kelvin-Planck's statement, "It is impossible to devise a cyclically operating device, whose sole effect is the absorption of energy in the form of heat from a single from reservoir, and the performance of an equivalent amount of work..."

According to Claussius' statement, "In no process can the heat transfer from a colder to a warmer object take place without some other change, connected therewith, occurring at the same time..."

=> The Third Law of Thermodynamics states that "The entropy of a perfectly crystalline substance approaches zero, as its temperature approaches the absolute zero..."

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