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Under which of the following conditions we can boil water at room temperature?
- a)At low pressure
- b)At high pressure
- c)At very high pressure
- d)At atmospheric pressure
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
Under which of the following conditions we can boil water at room temp...
Boiling Water at Room Temperature
Explanation:
The boiling point of water is the temperature at which its vapor pressure is equal to the atmospheric pressure. Normally, water boils at 100°C (212°F) at standard atmospheric pressure. However, under certain conditions, it is possible to boil water at room temperature.
The correct answer is option 'A' which states that water can be boiled at room temperature under low pressure.
Boiling Water at Low Pressure:
When the pressure on the surface of the water is reduced, the boiling point of water decreases. This means that water can be made to boil at a lower temperature than 100°C if the pressure is reduced.
- At low pressure, the boiling point of water decreases.
- This means that water can be made to boil at a lower temperature than 100°C.
- At room temperature, the atmospheric pressure is 101.3 kPa (kilopascals).
- By reducing the pressure on the surface of the water, the boiling point can be lowered to room temperature.
- This can be achieved by using a vacuum pump or reducing the pressure inside a closed container.
Applications:
Boiling water at room temperature under low pressure has several practical applications:
- It is used in vacuum distillation, a process used to separate and purify liquids.
- It is used in freeze-drying or lyophilization, a process used to preserve food and other perishable items.
- It is used in vacuum sealing, a process used to preserve food by removing air from the packaging.
- It is used in cryotherapy, a medical treatment that involves exposing the body to extremely cold temperatures.
Conclusion:
Water can be boiled at room temperature under low pressure. This can be achieved by reducing the pressure on the surface of the water, which lowers the boiling point of water. This has several practical applications in various fields.
Explanation:
The boiling point of water is the temperature at which its vapor pressure is equal to the atmospheric pressure. Normally, water boils at 100°C (212°F) at standard atmospheric pressure. However, under certain conditions, it is possible to boil water at room temperature.
The correct answer is option 'A' which states that water can be boiled at room temperature under low pressure.
Boiling Water at Low Pressure:
When the pressure on the surface of the water is reduced, the boiling point of water decreases. This means that water can be made to boil at a lower temperature than 100°C if the pressure is reduced.
- At low pressure, the boiling point of water decreases.
- This means that water can be made to boil at a lower temperature than 100°C.
- At room temperature, the atmospheric pressure is 101.3 kPa (kilopascals).
- By reducing the pressure on the surface of the water, the boiling point can be lowered to room temperature.
- This can be achieved by using a vacuum pump or reducing the pressure inside a closed container.
Applications:
Boiling water at room temperature under low pressure has several practical applications:
- It is used in vacuum distillation, a process used to separate and purify liquids.
- It is used in freeze-drying or lyophilization, a process used to preserve food and other perishable items.
- It is used in vacuum sealing, a process used to preserve food by removing air from the packaging.
- It is used in cryotherapy, a medical treatment that involves exposing the body to extremely cold temperatures.
Conclusion:
Water can be boiled at room temperature under low pressure. This can be achieved by reducing the pressure on the surface of the water, which lowers the boiling point of water. This has several practical applications in various fields.
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Community Answer
Under which of the following conditions we can boil water at room temp...
At room temperature the water has specific vapor pressure. The boiling of water depends upon the external pressure of the water. When the external pressure of the water is lowered, the water will start to boil at room temperature.
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Under which of the following conditions we can boil water at room temperature?a)At low pressureb)At high pressurec)At very high pressured)At atmospheric pressureCorrect answer is option 'A'. Can you explain this answer?
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