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For water, at pressures below atmospheric,
- a)melting point rises slightly and boiling point drops markedly
- b)melting point rises markedly and boiling point drops markedly
- c)melting point drops slightly and boiling point drops markedly
- d)melting point drops slightly and boiling point drops slightly
- e)none of the above
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
For water, at pressures below atmospheric,a)melting point rises slight...
Effects of pressure on water
When the pressure exerted on water is reduced, it affects the properties of water. The effects of pressure on water are:
Melting point
- The melting point of water is the temperature at which water changes from a solid state to a liquid state.
- When the pressure is reduced, the melting point of water rises slightly.
- This happens because the molecules of water are more free to move around, and it takes more energy to bind them together in a solid state.
Boiling point
- The boiling point of water is the temperature at which water changes from a liquid state to a gaseous state.
- When the pressure is reduced, the boiling point of water drops markedly.
- This happens because the molecules of water have less pressure holding them together in a liquid state, and it takes less energy to make them move apart into a gaseous state.
Conclusion
The correct option is A, as when the pressure is reduced, the melting point of water rises slightly and the boiling point of water drops markedly.
When the pressure exerted on water is reduced, it affects the properties of water. The effects of pressure on water are:
Melting point
- The melting point of water is the temperature at which water changes from a solid state to a liquid state.
- When the pressure is reduced, the melting point of water rises slightly.
- This happens because the molecules of water are more free to move around, and it takes more energy to bind them together in a solid state.
Boiling point
- The boiling point of water is the temperature at which water changes from a liquid state to a gaseous state.
- When the pressure is reduced, the boiling point of water drops markedly.
- This happens because the molecules of water have less pressure holding them together in a liquid state, and it takes less energy to make them move apart into a gaseous state.
Conclusion
The correct option is A, as when the pressure is reduced, the melting point of water rises slightly and the boiling point of water drops markedly.
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Community Answer
For water, at pressures below atmospheric,a)melting point rises slight...
The atmosphere pushes down on the water molecules. This stops them from escaping gravity. When you have no atmosphere then you have no pushing on the water molecules. This means the water molecules will just evaporate. They will just jump up into the sky and bouling point decreases.
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For water, at pressures below atmospheric,a)melting point rises slightly and boiling point drops markedlyb)melting point rises markedly and boiling point drops markedlyc)melting point drops slightly and boiling point drops markedlyd)melting point drops slightly and boiling point drops slightlye)none of the aboveCorrect answer is option 'A'. Can you explain this answer? for Mechanical Engineering 2025 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about For water, at pressures below atmospheric,a)melting point rises slightly and boiling point drops markedlyb)melting point rises markedly and boiling point drops markedlyc)melting point drops slightly and boiling point drops markedlyd)melting point drops slightly and boiling point drops slightlye)none of the aboveCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for For water, at pressures below atmospheric,a)melting point rises slightly and boiling point drops markedlyb)melting point rises markedly and boiling point drops markedlyc)melting point drops slightly and boiling point drops markedlyd)melting point drops slightly and boiling point drops slightlye)none of the aboveCorrect answer is option 'A'. Can you explain this answer?.
For water, at pressures below atmospheric,a)melting point rises slightly and boiling point drops markedlyb)melting point rises markedly and boiling point drops markedlyc)melting point drops slightly and boiling point drops markedlyd)melting point drops slightly and boiling point drops slightlye)none of the aboveCorrect answer is option 'A'. Can you explain this answer? for Mechanical Engineering 2025 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about For water, at pressures below atmospheric,a)melting point rises slightly and boiling point drops markedlyb)melting point rises markedly and boiling point drops markedlyc)melting point drops slightly and boiling point drops markedlyd)melting point drops slightly and boiling point drops slightlye)none of the aboveCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for For water, at pressures below atmospheric,a)melting point rises slightly and boiling point drops markedlyb)melting point rises markedly and boiling point drops markedlyc)melting point drops slightly and boiling point drops markedlyd)melting point drops slightly and boiling point drops slightlye)none of the aboveCorrect answer is option 'A'. Can you explain this answer?.
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