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Under which of the following conditions we can boil water at room temperature?
- a)At low pressure
- b)At moderate pressure
- c)At very high pressure
- d)At atmospheric pressure
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
Under which of the following conditions we can boil water at room temp...
At low pressure
Explanation: Boiling occurs when the vapor pressure of a liquid equals the external pressure. At lower pressures, the boiling point of water decreases. So, if the external pressure is reduced significantly (below atmospheric pressure), water can boil at room temperature. This phenomenon can be observed in a vacuum chamber, where the pressure is significantly reduced, allowing water to boil at room temperature.
Explanation: Boiling occurs when the vapor pressure of a liquid equals the external pressure. At lower pressures, the boiling point of water decreases. So, if the external pressure is reduced significantly (below atmospheric pressure), water can boil at room temperature. This phenomenon can be observed in a vacuum chamber, where the pressure is significantly reduced, allowing water to boil at room temperature.
Most Upvoted Answer
Under which of the following conditions we can boil water at room temp...
Boiling water at room temperature
Low Pressure Condition
Boiling water at room temperature is possible only under low pressure conditions. This is because the boiling point of water decreases as the pressure decreases. At lower pressures, the water molecules have less pressure keeping them together, and thus require less energy to break apart into a gaseous state.
Atmospheric Pressure
At atmospheric pressure, the boiling point of water is 100°C (212°F). This means that water will boil at 100°C only if the pressure surrounding it is equal to or greater than atmospheric pressure. At room temperature, atmospheric pressure is not enough to cause water to boil.
High Pressure Condition
At high pressure, water requires more energy to break apart into a gaseous state. Therefore, the boiling point of water increases as the pressure increases. This means that water will not boil at room temperature under high pressure conditions.
Very High Pressure Condition
Similarly, at very high pressure, the boiling point of water becomes so high that it would require temperatures far beyond room temperature to reach that boiling point.
Conclusion
Hence, the correct option is A, boiling water at room temperature is possible only under low pressure conditions. This phenomenon is used in vacuum distillation, where liquids are distilled at a lower temperature and pressure than atmospheric pressure.
Low Pressure Condition
Boiling water at room temperature is possible only under low pressure conditions. This is because the boiling point of water decreases as the pressure decreases. At lower pressures, the water molecules have less pressure keeping them together, and thus require less energy to break apart into a gaseous state.
Atmospheric Pressure
At atmospheric pressure, the boiling point of water is 100°C (212°F). This means that water will boil at 100°C only if the pressure surrounding it is equal to or greater than atmospheric pressure. At room temperature, atmospheric pressure is not enough to cause water to boil.
High Pressure Condition
At high pressure, water requires more energy to break apart into a gaseous state. Therefore, the boiling point of water increases as the pressure increases. This means that water will not boil at room temperature under high pressure conditions.
Very High Pressure Condition
Similarly, at very high pressure, the boiling point of water becomes so high that it would require temperatures far beyond room temperature to reach that boiling point.
Conclusion
Hence, the correct option is A, boiling water at room temperature is possible only under low pressure conditions. This phenomenon is used in vacuum distillation, where liquids are distilled at a lower temperature and pressure than atmospheric pressure.
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Community Answer
Under which of the following conditions we can boil water at room temp...
At low pressure we can boil water at room temp...so the correct answer is A.
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Under which of the following conditions we can boil water at room temperature?a)At low pressureb)At moderate pressurec)At very high pressured)At atmospheric pressureCorrect answer is option 'A'. Can you explain this answer?
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