Class 9 Exam > Class 9 Questions > How does evaporation cause cooling?a)By relea...
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How does evaporation cause cooling?
- a)By releasing energy
- b)By decreasing pressure
- c)By increasing temperature
- d)By absorbing energy
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
How does evaporation cause cooling?a)By releasing energyb)By decreasin...
Evaporation and Cooling:
Evaporation is the process by which a liquid turns into a vapor or gas. When a liquid evaporates, it changes from a liquid state to a gaseous state, absorbing energy from its surroundings in the form of heat. This absorption of energy causes the remaining liquid to cool down.
Explanation:
Energy Absorption:
- When a liquid evaporates, the molecules of the liquid gain energy from their surroundings to overcome the attractive forces holding them together.
- This energy is absorbed in the form of heat, leading to a decrease in temperature of the remaining liquid.
Heat Transfer:
- As the more energetic molecules leave the liquid surface and enter the vapor phase, they take away energy from the liquid in the form of heat.
- This loss of energy causes a decrease in the average kinetic energy of the remaining molecules, resulting in cooling.
Effect on Surroundings:
- The process of evaporation causes a cooling effect not only on the liquid itself but also on the surrounding environment.
- As the more energetic molecules leave the liquid surface, they take away heat energy from the surroundings, leading to a decrease in temperature of the surroundings.
Conclusion:
Evaporation causes cooling by absorbing energy in the form of heat from the surroundings. This process is essential for regulating temperatures in various natural systems and plays a significant role in the water cycle and climate regulation.
Evaporation is the process by which a liquid turns into a vapor or gas. When a liquid evaporates, it changes from a liquid state to a gaseous state, absorbing energy from its surroundings in the form of heat. This absorption of energy causes the remaining liquid to cool down.
Explanation:
Energy Absorption:
- When a liquid evaporates, the molecules of the liquid gain energy from their surroundings to overcome the attractive forces holding them together.
- This energy is absorbed in the form of heat, leading to a decrease in temperature of the remaining liquid.
Heat Transfer:
- As the more energetic molecules leave the liquid surface and enter the vapor phase, they take away energy from the liquid in the form of heat.
- This loss of energy causes a decrease in the average kinetic energy of the remaining molecules, resulting in cooling.
Effect on Surroundings:
- The process of evaporation causes a cooling effect not only on the liquid itself but also on the surrounding environment.
- As the more energetic molecules leave the liquid surface, they take away heat energy from the surroundings, leading to a decrease in temperature of the surroundings.
Conclusion:
Evaporation causes cooling by absorbing energy in the form of heat from the surroundings. This process is essential for regulating temperatures in various natural systems and plays a significant role in the water cycle and climate regulation.
Community Answer
How does evaporation cause cooling?a)By releasing energyb)By decreasin...
During evaporation, the particles of liquid absorb energy or latent heat of vaporization from the surroundings. This absorption of energy makes the surroundings cold, causing evaporation to have a cooling effect.
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How does evaporation cause cooling?a)By releasing energyb)By decreasing pressurec)By increasing temperatured)By absorbing energyCorrect answer is option 'D'. Can you explain this answer?
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How does evaporation cause cooling?a)By releasing energyb)By decreasing pressurec)By increasing temperatured)By absorbing energyCorrect answer is option 'D'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about How does evaporation cause cooling?a)By releasing energyb)By decreasing pressurec)By increasing temperatured)By absorbing energyCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for How does evaporation cause cooling?a)By releasing energyb)By decreasing pressurec)By increasing temperatured)By absorbing energyCorrect answer is option 'D'. Can you explain this answer?.
How does evaporation cause cooling?a)By releasing energyb)By decreasing pressurec)By increasing temperatured)By absorbing energyCorrect answer is option 'D'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about How does evaporation cause cooling?a)By releasing energyb)By decreasing pressurec)By increasing temperatured)By absorbing energyCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for How does evaporation cause cooling?a)By releasing energyb)By decreasing pressurec)By increasing temperatured)By absorbing energyCorrect answer is option 'D'. Can you explain this answer?.
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