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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does mass balance mean in environmental analysis?
💡 Hint: Think about how mass cannot disappear.
Question 2
Easy
What is sludge?
💡 Hint: Consider what typically accumulates in industrial tanks.
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 is the primary principle behind mass balance?
- Mass can change
- Mass must remain constant
- Mass can be created
💡 Hint: Remember the first law of thermodynamics.
Question 2
True or False: Concentrations of a contaminant will always increase when more water is added.
- True
- False
💡 Hint: Think about diluting a juice.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
If a waste tank has 400 m³ of sludge with 15% organic carbon and experiences 1200 m³ of rainwater addition, determine the new concentration of organic carbon after stabilization.
💡 Hint: Consider both the original and diluted concentrations.
Question 2
Describe how the chemical analysis method would change if a significant volume of water was lost through evaporation before extraction.
💡 Hint: Think about how missing water affects chemical concentration.
Challenge and get performance evaluation