Answer to Question #109448 in Physical Chemistry for Simran

Question

Give the statements of zeroth, first , second and the third law of thermodynamics and outline their significance

Answer 1

The zeroth law of thermodynamics states if two bodies are each in thermal equilibrium with some third body, then they are also in equilibrium with each other.

The first law of thermodynamics, also known as law of conservation of energy, states that energy cannot be created or destroyed in an isolated system.

The second law of thermodynamics states that processes that involve the transfer or conversion of heat energy are irreversible.

The third law of thermodynamics states that the entropy of a system approaches a constant value as the temperature approaches absolute zero.

Significance of the laws of thermodynamics: these laws define the physical quantities (temperature, energy, and entropy) that characterize thermodynamic systems at thermodynamic equilibrium.