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Assertion (A): Water droplets form on the outer surface of a glass containing ice-cold water.
Reason (R): Water evaporates from the glass and condenses on the outside.
  • a)
    If both Assertion and Reason are true and Reason is the correct explanation of Assertion
  • b)
    If both Assertion and Reason are true but Reason is not the correct explanation of Assertion
  • c)
    If Assertion is true but Reason is false
  • d)
    If both Assertion and Reason are false
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Assertion (A): Water droplets form on the outer surface of a glass con...
- Assertion (A) is true: Water droplets form on the outer surface of a glass containing ice-cold water because the cold temperature of the glass causes moisture in the air to condense.
- Reason (R) is false: Water does not evaporate from the glass and condense on the outside. Instead, the moisture in the surrounding air condenses on the cooler surface of the glass.
- Therefore, the correct option is C: The assertion is true, but the reason is false.
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Most Upvoted Answer
Assertion (A): Water droplets form on the outer surface of a glass con...
Understanding the Assertion and Reason
The scenario involves a glass with ice-cold water and the formation of water droplets on its outer surface. Let's analyze both the assertion and the reason.
Assertion (A): Water droplets form on the outer surface of a glass containing ice-cold water.
- This statement is true. When warm, moist air comes into contact with the cold surface of the glass, the air cools down.
- As the air cools, its capacity to hold moisture decreases, leading to condensation and the formation of water droplets on the outer surface.
Reason (R): Water evaporates from the glass and condenses on the outside.
- This statement is false. The primary process occurring is not evaporation from the glass but condensation of moisture from the warm air.
- The water droplets form due to the condensation of water vapor in the air, not from water evaporating from the glass itself.
Conclusion
- Since the assertion is true (A) and the reason is false (R), the correct option is “c.”
- The droplets form due to the cooling of warm air, not because of evaporation from the glass.
Key Takeaways
- Water droplets are a result of condensation on the cold surface.
- The reason provided does not accurately explain the phenomenon.
Understanding these principles helps clarify the distinction between evaporation and condensation, critical concepts in thermodynamics and everyday observations.
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Assertion (A): Water droplets form on the outer surface of a glass containing ice-cold water.Reason (R): Water evaporates from the glass and condenses on the outside.a)If both Assertion and Reason are true and Reason is the correct explanation of Assertionb)If both Assertion and Reason are true but Reason is not the correct explanation of Assertionc)If Assertion is true but Reason is falsed)If both Assertion and Reason are falseCorrect answer is option 'C'. Can you explain this answer?
Question Description
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