subject
Engineering, 08.02.2021 18:50 Hollywood0122

The Van der Waals equation of state is for real gases that do not behave as ideal gases. This equation is a cubic equation of state, meaning that it gives 3 volume roots. One root will be close to the value of the constant b liquid root) and the other (vapor root) can best be estimated using the ideal gas value of RT/P. A third root is meaningless. P= RT/V-b - a/V^2 where b= RTc/8Pc and a= 27R^2Tc^2/64Pc^2

For methane at 100°C and 15 bar, determine the gas root of Volume using the Van der Waals EOS. You will need to use goalseek function to determine the root. For convenience, the Tc of methane is 190.6 K and Pc = 46.1 bar. Calculate the volume value in liters.

ansver
Answers: 3

Another question on Engineering

question
Engineering, 04.07.2019 18:10
An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet
Answers: 3
question
Engineering, 04.07.2019 18:10
Air is to be cooled in the evaporator section of a refrigerator by passing it over a bank of 0.8-cm-outer-diameter and 0.4-m-long tubes inside which the refrigerant is evaporating at -20°c. air approaches the tube bank in the normal direction at 0°c and 1 atm with a mean velocity of 4 m/s. the tubes are arranged in-line with longitudinal and transverse pitches of sl- st 1.5 cm. there are 30 rows in the flow direction with 15 tubes in each row. determine (a) the refrigeration capacity of this system and (b) pressure drop across the tube bank. evaluate the air properties at an assumed mean temperature of -5°c and 1 atm. is this a good assumption?
Answers: 1
question
Engineering, 04.07.2019 18:20
Aquick transition of the operating speed of a shaft from its critical speed will whirl amplitude. (a) increase (b) limit (c) not affect (d) zero
Answers: 2
question
Engineering, 04.07.2019 18:20
Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?
Answers: 3
You know the right answer?
The Van der Waals equation of state is for real gases that do not behave as ideal gases. This equati...
Questions
question
History, 29.06.2019 08:00
question
Computers and Technology, 29.06.2019 08:00
Questions on the website: 13722360