Question

Consider the following statements: (I) In any energy conversion, some of the usable energy is always lost (II) Energy is neither created nor destroyed, but it may be converted from one form to another, (III) Systems will go spontaneously in one direction only, toward increasing entropy. Which of these are statements of the second law of thermodynamics?
a. II and III
b. I, II, and III
c. I and II
d. I and III

Answer 1

The correct option is (d) i.e. I and III. I In any energy conversion, some of the usable energy is always lost and III Systems will go spontaneously in one direction only, toward increasing entropy follow second law of thermodynamics.

Entropy is a scientific concept and measurable physical feature that is frequently related to a state of chaos, unpredictability, or uncertainty. The phrase and concept are used in a range of fields, from classical thermodynamics, where it was first discovered, to the principles of information theory, to the microscopic description of nature in statistical physics. In physics and chemistry, biological systems and how they connect to life, cosmology, economics, sociology, weather science, and information systems, particularly the interchange of information, it has a wide range of applications. Entropy has the consequence of rendering some operations impossible or irreversible, in addition to the need that they do not conflict with the first law of thermodynamics, which is the conservation of energy. Based on the idea of entropy, the second law of thermodynamics states that isolated systems permitted to develop naturally cannot have their entropy decrease over time because they always reach a state of thermodynamic equilibrium where it is highest.

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