We know that cyclic is given as: (∂P / ∂V)S (∂V / ∂S)P (∂S / ∂P)V = -1 (∂P / ∂V)S = - [(∂S / ∂V) P]/[(∂S / ∂P)V] = [- (∂S / ∂T)P (∂T / ∂V)P]/[(∂S / ∂T) V (∂T / ∂P)V] = -[ (CP / T) ...

Data given: Q1 = 2400 KJ Q4 = 300 KJ For engine E1, Efficiency η1 = (Q1 - Q2) / Q1 = 1 – (Q2 / Q1) I.e. Q2 / Q1 = 1 - η1 Similarly for engine E2, Q3 / Q2 = 1 - η2 For engine E3, Q4 / Q3 = 1 - ...

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 gases. This concept is known as concept of Fugacity. We know that the variation of free ...

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 + PV Substituting the value of H in equation (1) we will get: G = U + PV – TS ...

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 temperature. Spontaneous process is also known as irreversible process because these processes take place at very fast ...

Given: temperature of the iron cube = 400o C = 400 + 273 = 673 K Temperature of water = 10 kg Temperature of water and cube after equilibrium = 50o C = 50 +273 = 323 K Specific heat of water, cpw = 4186 J/kg K Entropy changes ...

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 gas, we have: S = Cv ln T + R ln V + So Where So represents the ...

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: The process in which there is no change in temperature is known as Isothermal process. Entropy changes from S1 to ...