Interpretation: The substance which is solid at
Concept Introduction: The melting point is defined as the temperature at which a solid substance starts melting. The boiling point is defined as the temperature of a liquid when its vapor pressure is equal to the atmospheric pressure. This is the temperature when liquid starts boiling and converts into vapor.
Answer to Problem 65A
Sulphur.
Explanation of Solution
The substance whose boiling point and melting point is above
From the given substance, bromine, ethanol, mercury, and water are liquid at room temperature. On the other hand, chlorine, and neon is gas at room temperature. Since the boiling point and melting point of sulphur is very high, it is solid at room temperature.
On checking the temperature ranges, bromine will be liquid in the temperature range
Now, the melting point of sulphur is
Therefore, the correct answer is sulphur.
Thus, sulphur is solid at
Chapter 2 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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