State of chlorine at room temperature?

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Study for the IGCSE Edexcel Chemistry Test. Access flashcards and multiple choice questions with hints and explanations. Get ready for your exam!

Multiple Choice

State of chlorine at room temperature?

Explanation:
At room temperature, the state of a substance is determined by its melting and boiling points relative to that temperature. Chlorine has a melting point of about -101°C and a boiling point of about -34°C. Since room temperature (roughly 20–25°C) is well above both of these, chlorine exists as a gas under normal conditions. It’s a diatomic molecule, Cl2, and it would only become a liquid or solid if you cooled it far below its melting point. Plasma is a highly energized, ionized state and doesn’t occur for chlorine in everyday conditions.

At room temperature, the state of a substance is determined by its melting and boiling points relative to that temperature. Chlorine has a melting point of about -101°C and a boiling point of about -34°C. Since room temperature (roughly 20–25°C) is well above both of these, chlorine exists as a gas under normal conditions. It’s a diatomic molecule, Cl2, and it would only become a liquid or solid if you cooled it far below its melting point. Plasma is a highly energized, ionized state and doesn’t occur for chlorine in everyday conditions.

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