Question

Thermodynamic entropy differs from statistical mechanics entropy by a constant:
1. Critical pressure
2. Critical pressure & Boltzmann’s constant
3. Boltzmann’s constant
4. None of the Above

Answer 1

Correct Answer - Option 3 : Boltzmann’s constant

Explanation:

• The basic laws of physics governing the behaviour of microscopic particles are in certain respects simple.
• They give rise both to the complex behaviour of macroscopic aggregates of these particles, and more remarkably, to a new kind of simplicity.
• Thermodynamics focuses on simplicity at the macroscopic level directly and formulates its laws in terms of a few observable parameters like temperature and pressure.
• Statistical Mechanics, on the other hand, seeks to build a bridge between mechanics and thermodynamics, providing in the process, a basis for the latter and pointing out the limits to its range of applicability.
• Statistical Mechanics also allows one to investigate, in principle, physical systems outside the range of validity of Thermodynamics.
• After an introduction to thermodynamic laws, we will consider a microscopic view of entropy, formulate the kinetic theory, and study several pertinent probability distributions including the classical Boltzmann distribution. 

So, Boltzmann’s constant create differ from both.