by admin | Jun 4, 2015 | sem1
Clausius Inequality The Clausius theorem (1855) states that for a system exchanging heat with external reservoirs and undergoing a cyclic process (i.e. a process which ultimately returns a system to its original state): where δ is the amount of heat absorbed by the...
by admin | Jun 4, 2015 | sem1
Entropy of Phase Transitions We would expect that a phase change would be accompanied by a change in entropy. For example, when a liquid boils, a compact condensed phase is converted into a widely dispersed vapour phase. Clearly, the molecular disorder in a gas will...
by admin | Jun 4, 2015 | sem1
Reversible and Irreversible Processes Define Reversible and Irreversible Process and give example. There are two main types of thermodynamic processes: reversible process and the irreversible process. Irreversible Process: The process is said to be an irreversible...
by admin | Jun 4, 2015 | sem1
Entropy Changes in an Ideal Gas Many aerospace applications involve flow of gases (e.g., air) and we thus examine the entropy relations for ideal gas behavior. The starting point is form (a) of the combined first and second law, For an ideal gas, . Thus Using the...
by admin | Jun 4, 2015 | sem1
Entropy in Chemistry In thermodynamics, entropy (usual symbol S) is a measure of the number of specific ways in which a thermodynamic system may be arranged, commonly understood as a measure of disorder. According to the second law of thermodynamics the entropy of an...
by admin | Jun 4, 2015 | sem1
Second Law of Thermodynamics Thermodynamics is a branch of physics which deals with the energy and work of a system. Thermodynamics deals only with the large scale response of a system which we can observe and measure in experiments. In aerodynamics, the...
