There are three types of processes in which entropy changes of an ideal gas. These three processes are: 1. Isothermal process 2. Isobaric process 3. Isochoric process 1. Isothermal process:…
For one mole of an ideal gas: dS = Cv dT / T + R dV / V Integrating the above equation, assuming that Cv remains constant for an ideal…
Given: temperature of the iron cube = 400o C = 400 + 273 = 673 K Temperature of water = 10 kg Temperature of water and cube after equilibrium =…
Physical Significance of Entropy: 1. Entropy as a measure of the Disorder of the system: We know that all the spontaneous process in which heat is transferred through a finite…
The variation of free energy change with change in temperature and pressure is discussed below: Consider the following equation: G = H – TS …………………………………….……. (1) As H = U…
Lewis introduced a concept by making use of free energy function G to represent the actual behavior of real gases which is very much different from the concept of ideal…
Data given: Q1 = 2400 KJ Q4 = 300 KJ For engine E1, Efficiency η1 = (Q1 – Q2) / Q1 = 1 – (Q2 / Q1) I.e. Q2 /…
We know that cyclic is given as: (∂P / ∂V)S (∂V / ∂S)P (∂S / ∂P)V = -1 (∂P / ∂V)S = – / = / = -/ = –…
Clapeyron discovered an important fundamental equation which helps in finding the extensive application in one component, two phase system and by Clausius from second law of thermodynamics. Hence this fundamental…
Gibbs-Duhem Equation The Gibbs free energy can be defined in two different ways once by subtracting off combinations of entropy S, enthalpy H and temperature T and other as a…
admin