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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is mass balance?
💡 Hint: Remember, it's about accounting for mass.
Question 2
Easy
What happens to sludge when rainwater mixes with it?
💡 Hint: Think about how the physical state changes.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does mass balance ensure in a closed system?
- Mass can disappear
- Mass is conserved
- Mass changes based on temperature
💡 Hint: Think about the law of conservation of mass.
Question 2
True or False: In a mass balance, evaporation is always assumed.
- True
- False
💡 Hint: Consider the specific assumptions made in mass balance scenarios.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
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.
💡 Hint: Use the mass balance equation and ensure all units match.
Question 2
Analyze how introducing rainwater containing a chemical affects the overall mass balance and the methods used to assess equilibrium conditions.
💡 Hint: Think about how the new chemical mixes with existing elements and affects distribution.
Challenge and get performance evaluation