b. (b) O c. (c) o d. (d) Question 3 Not yet answered Marked out of 1.00 For an o
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b. (b) O c. (c) o d. (d) Question 3 Not yet answered Marked out of 1.00 For an open system involving no reactions, will there be a conservation of components within the system? Please answer "Yes' or To Answer: Yes P ag question Question 4 A 500g/s stream of Brine Water with 10g salt per 90g water enters an evaporator operating at 200 concentrated brine stream leaves the system. c. Evaporated moisture with a filow of 280 g/s as well asa Not yet andwered the mass fraction of salt in the concentrated brine stream. Gve your answer to 2 significant figures. P Flag euestion Answer: - 0 Question 5 Not yet anawered Convert 8000-mL to k? Give your answer to 2 significant 8000 k Give your answer to 2 significant figures Not yet anwered mm min P lag question Answer: Nexd page ials are for your research and study only. Further reproduction, transmission or sale without permission is prohibited. Disclalmer and copyright - Privacy - Monash College CRICOS Provider Number: 018573 You are logged in as Minghan Shan (Log out) MCD4280 Engineering design: cleaner, safer, smarter T2-2018 er...pdf Show all ^????49 ENG 31/07/2018 TPMExplanation / Answer
Ans 3 is correct
True
In open system
Both Mass and energy transfer occurs.
Conservation of mass and conservation of energy for the components present will be there within a system.
Ans 4
Inlet stream of brine water = 500 g/s
Brine concentration = 10 g salt / 90 g water
= 10 g salt / (10 + 90)g brine solution
= 10 g salt / 100 g brine solution
Salt in inlet stream of brine solution
= (10 g salt) x (500g/s brine solution) / (100 g brine solution)
= ( 50 g/s)
Salt does not evaporate.
Salt leaving the system in the concentrated brine stream
= 50 g/s
Overall mass balance of the system
Mass of inlet brine stream = mass of water evaporated + mass of concentrated brine stream
500 = 280 + mass of concentrated brine stream
mass of concentrated brine stream = 500 - 280
= (220 g/s)
Mass fraction of salt in concentrated brine stream
= mass of salt / mass of concentrated brine stream
= 50/220
= 0.23
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