How does increasing the amount of bromine affect its boiling point?

• A. The boiling point fluctuates unpredictably with the amount of bromine.
• B. The boiling point decreases due to weaker intermolecular forces.
• C. The boiling point increases due to stronger intermolecular forces.
• D. The boiling point remains unchanged regardless of the amount of bromine.

Answer: (C)

Verified step by step guidance

1. Understand the concept of boiling point: The boiling point of a substance is the temperature at which its vapor pressure equals the external pressure, allowing it to transition from liquid to gas.
2. Consider the role of intermolecular forces: The boiling point is influenced by the strength of intermolecular forces. Stronger forces require more energy (higher temperature) to overcome, resulting in a higher boiling point.
3. Analyze the effect of increasing the amount of bromine: Increasing the amount of bromine in a system can lead to more interactions between bromine molecules, potentially increasing the strength of intermolecular forces.
4. Evaluate the options: The correct answer suggests that the boiling point increases due to stronger intermolecular forces, which aligns with the idea that more bromine molecules can enhance these forces.
5. Conclude the reasoning: Based on the understanding of intermolecular forces and boiling point, increasing the amount of bromine likely strengthens these forces, thus raising the boiling point.