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Problem 3.32:
1 kg of liquid water, initially at 40 °C, 2 bar, is heated under constant pressure. If the amount of heat added is 1200 kJ, determine the final temperature and the phase of the system in the final state (if vapor-liquid mixture, report the mass fraction of each phase). Problem 3.33:
a) Obtain the heat of vaporization of steam at 30 bar. b) Saturated liquid water at 30 bar is heated until the quality is 75%. What is the amount of heat? c) Saturated liquid water at 30 bar is heated by adding 750 kJ/kg of heat at constant pressure. What is the final state? d) What is the final state if the amount of heat that is added to the saturated liquid is 1950 kJ/kg?
The left side of of the mechanical energy equation has three terms: P/p, (1/2)av^2 and gz. show that each of these terms has the dimension of energy per mass of fluid by....a) converting each term to units of Btu/lbm beginning with pressure in psi, d..
prepare an approximate plot of temperature versus concentration
Calculate the flow rates of burets Y and Z. Assume the flow rates remain constant during the experiment.
A certain gas has a molecular weight of 30.0 a critical temperature of 310K. and a critical pressure of 4.5MPa. Calculate the density in kg/m3 of this gas at 465 K and 9.0MPa
What is the main sequence diagram? How do results from the Westheimer model in Section 12.4 compare with the main sequence diagram?
where V is the molar volume at temperature T, and a is a constant. Initially one mole of the gas is at temperature T1 and occupies volume V1. The gas is allowed to expand adiabatically into a vacuum so that it occupies a total volume V2.
using the concept of a mass balance describe how environmental engineers and scientists model the carbon cycle in the
Why do displacement reactions produce hydrogen? eg: nails dipped in a solution of acetic acid used to clean old pennies.
Why has this definition of biocompatibility changed?
What is the pesticide concentration in the test sample assuming no other inhibitors or substrates are present?
You have just been hired as part of the opening management team for a new restaurant in the area. As a group, chose 1 of the concepts from a team members' Week One Individual Project to utilize as your restaurant.
Devise a control system for this reactor, and draw up a preliminary piping and instrument diagram. The following points need to be considered:
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