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A substance has a melting point of -7°C and a boiling point of 59°C. What is its state at room temperature (20°C)?
- a)Solid
- b)Liquid
- c)Gas
- d)None
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
A substance has a melting point of -7°C and a boiling point of 59&...
Explanation:
State at Room Temperature (20°C):
At room temperature, which is 20°C, the substance is in its liquid state. This is because the temperature of 20°C lies between the melting point (-7°C) and the boiling point (59°C) of the substance.
Melting Point (-7°C):
The melting point of -7°C indicates the temperature at which the substance transitions from a solid to a liquid state. At temperatures below -7°C, the substance exists as a solid.
Boiling Point (59°C):
The boiling point of 59°C represents the temperature at which the substance transitions from a liquid to a gas state. At temperatures above 59°C, the substance exists as a gas.
Therefore, at room temperature (20°C), the substance will be in its liquid state since the temperature is between its melting and boiling points.
State at Room Temperature (20°C):
At room temperature, which is 20°C, the substance is in its liquid state. This is because the temperature of 20°C lies between the melting point (-7°C) and the boiling point (59°C) of the substance.
Melting Point (-7°C):
The melting point of -7°C indicates the temperature at which the substance transitions from a solid to a liquid state. At temperatures below -7°C, the substance exists as a solid.
Boiling Point (59°C):
The boiling point of 59°C represents the temperature at which the substance transitions from a liquid to a gas state. At temperatures above 59°C, the substance exists as a gas.
Therefore, at room temperature (20°C), the substance will be in its liquid state since the temperature is between its melting and boiling points.
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Community Answer
A substance has a melting point of -7°C and a boiling point of 59&...
The given temperature (room temperature) is between the melting and boiling points, so the substance is in the liquid state.
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A substance has a melting point of -7°C and a boiling point of 59°C. What is its state at room temperature (20°C)?a)Solidb)Liquidc)Gasd)NoneCorrect answer is option 'B'. Can you explain this answer?
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