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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is depression in freezing point?
💡 Hint: Think about how adding something to another substance changes its freezing behavior.
Question 2
Easy
What does the formula \(\Delta T_f = K_f \cdot m\) represent?
💡 Hint: Look at each component to understand how they interact.
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 effect of adding a solute to a freezing solvent?
- It raises the freezing point
- It lowers the freezing point
- It has no effect
💡 Hint: Think about real-world applications, like road salt in winter.
Question 2
True or False: Depression in freezing point is a colligative property.
- True
- False
💡 Hint: Remember what defines a colligative property.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A solution made of 2 moles of NaCl in 3 kg of water. How much does the freezing point decrease? Use \(K_f = 1.86 °C kg/mol\).
💡 Hint: Account for the dissociation of NaCl into two ions.
Question 2
If a substance shows a freezing point depression of 5 °C in 1 kg of water while 2 moles are dissolved, find its cryoscopic constant.
💡 Hint: Use the formula appropriately and isolate K_f.
Challenge and get performance evaluation