In the project, the theoretical methods will be used to construct the property tables for ammonia using the Van der Waals Equation of state. You are required to find out the specific heats of the Van der Waals gas before performing the calculation. Consider the Van der Waals gas obeying the equation of state: p= C. RT a v-b v² where a and b are empirical constant to be determined assuming the critical point occur at inflection and stationary point on the p - v diagram. The critical pressure and temperature of ammonia are 11.35 MPa and 405.5 K respectively. Assume the universal gas constant, R = 8.314 J/mol K. Sketch the following graphs using reduced temperature as the parameter, T, = 0.85, 0.86, 0.88, 0.90, 0.95, 1.00, 1.10, 1.40, 2.00, and 5.00 for ammonia. a. Reduced pressure, p, versus reduced specific volume, v₁. b. Compressibility factor, Z versus reduced pressure, pr. Internal energy of departure, (u* - u)r/RT, versus reduced pressure, p,..

In the project, the theoretical methods will be used to construct the property tables for ammonia using the Van der Waals Equation of state. You are required to find out the specific heats of the Van der Waals gas before performing the calculation. Consider the Van der Waals gas obeying the equation of state: p= C. RT a v-b v² where a and b are empirical constant to be determined assuming the critical point occur at inflection and stationary point on the p - v diagram. The critical pressure and temperature of ammonia are 11.35 MPa and 405.5 K respectively. Assume the universal gas constant, R = 8.314 J/mol K. Sketch the following graphs using reduced temperature as the parameter, T, = 0.85, 0.86, 0.88, 0.90, 0.95, 1.00, 1.10, 1.40, 2.00, and 5.00 for ammonia. a. Reduced pressure, p, versus reduced specific volume, v₁. b. Compressibility factor, Z versus reduced pressure, pr. Internal energy of departure, (u* - u)r/RT, versus reduced pressure, p,..

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

Detemine the specific volume of superheated water vapor at 12.5 NMPa and 325°C, using (a) the ideal-gas equation, (b) the generalized compressibility chart, and (c) the steam tables. Also determine the error involved in the first two cases.
In a piston-cylinder assembly as in the figure, 0.1 m3 of saturated water at 800 kPa pressure 0.9 m3saturated water vapor is in equilibrium. The temperature in the cylinder rises to 350 oCHeat transfer occurs as much. Neglecting the frictional forces between the piston and cylinder:a) Considering the state change saturation curves, in ? - ? and ? - ? diagramsshow.b) Find the initial temperature of the water.c) Calculate the total mass of water.d) Calculate the volume in the final case.
Part D and E SOLVE CAREFULLY PART D Using the P–v and T–s diagrams show that in the isobaric process the saturated vapor state can be reached for arbitrary initial steam quality x1 whereas in the isentropic process the saturated vapor state can be attained only for x1 above a certain threshold value. What is the phase description of water in the final state when the saturation line is reached from the initial state below the threshold value? PART E : Determine this threshold value of x1 for the isentropic process with the initial temperature T1 = 150°C.
An ideal gas of 4kg mass (MW=3g/mol and k=2.3) contained in a regulated mass system went through three processes in a cycle, one after the other. The initial conditions for the gas were 20kPa and 310K in the first step, and the pressure was isometrically increased by 30kPa. The gas was heated to 400 degrees Celsius using a technique defined by the equation PV3=C. Upon returning to its previous state, it exhibits polytropic behavior. Calculate the change in entropy for each of the processes.
Derive a relation for the volume expansivity β and the isothermal compressibility κ (a) for an ideal gas and (b) for a gas whose equation of state is P(v - a) = RT and (c) calculate β and κ for nitrogen at T=175K, v = 0.00375 m3 /kg, and a = 0.00138 m3 /kg and compare the results obtained from ideal gas law and from P(v - a) = RT.
Methane at 10 MPa and 200℃ is heated at constant pressure until its volume has increased by 75%. Determine the final temperature using : (a) Van de Waals constitutive eq. (b) Redlich Kwong constitutive eq. (c) Lee and Kesler correlation for compressibility factor (d)Ideal gas eq. Make a comment about which result is more reliable.
Properties of Pure Substancies What is the specific internal energy of water at 50 kPa and 20°C?
How does the diagram of U and Q looks like for the same isobar process (approx. 1 atm) for water between 50 and 150 °C?
Find expressions for [dS/dV]T, [dS/dP]T ,[dU/dV]T, and [dH/dP]Tfor a gas whose behavior can be described by the equation: P [ ( V / n ) –b ] = R T
What type of relation or and equation of state exist for a PVT system Discuss
Mr Luda wants to understand further about a newly created gas. The gas is initiallyat a pressure of 90 kPa, volume of 1.258 m3 and temperature of 10°C (State 1).The gas undergoes a 3-step process in which it is first compressed isothermally toa pressure of 400 kPa and volume of 0.283 m3 (State 2), then expanded at constantpressure back to its original volume (State 3). Finally, the gas is returned to itsoriginal State 1 by cooling at constant volume.a) Sketch the cycle of this system on a P – V diagram.b) Calculate the work done (in kJ) for each process step.c) Determine the total work done for the three-process cycle.d) State whether the work done is on or by the system.
Determine the change in specific latent heat with temperature dl/dT at any point (P, T) along the phase equilibrium line. Express your results in terms of l (latent heat) and specific heat capacity Cp, coefficient of expansion (a), and specific volume V of each phase at initial temperature T and pressure P *application of the concept of phase change