Practice Mass Balance Analysis (3) - Introduction - part A - Environmental Quality Monitoring & Analysis, - Vol 2

Practice: Mass Balance Analysis

Lesson 3Introduction - part A

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8 questions

Flashcard drill
2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is mass balance?
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Remember, it's about accounting for mass.
Question 2.
What happens to sludge when rainwater mixes with it?
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Think about how the physical state changes.
3Question 3.
What does mass balance ensure in a closed system?
- Mass can disappear
- Mass is conserved
- Mass changes based on temperature
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Think about the law of conservation of mass.
4Question 4.
True or False: In a mass balance, evaporation is always assumed.
- True
- False
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Consider the specific assumptions made in mass balance scenarios.
Question 5.
A tank initially holds 600,000 kg of sludge. If 120,000 kg of water is added, calculate the new concentration of chemical A assuming no A was in the water, and the initial concentration of A in the sludge is 250 mg/kg dry solids.
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Use the mass balance equation and ensure all units match.
Question 6.
Analyze how introducing rainwater containing a chemical affects the overall mass balance and the methods used to assess equilibrium conditions.
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Think about how the new chemical mixes with existing elements and affects distribution.

4 more questions in this section. Enroll free to practise them all.