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A body cooling from 80 degree Celsius to 70 degree Celsius takes 10 minutes when left exposed to environmental conditions. If the body is to cool further from 70 degree Celsius to 60 degree Celsius under the same external conditions, it will take
  • a)
    Same time of 10 minutes
  • b)
    More than 10 minutes
  • c)
    Less than 10 minutes
  • d)
    Time will depend upon the environmental conditions
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A body cooling from 80 degree Celsius to 70 degree Celsius takes 10 mi...
Q = h A (t – t a). Apparently the cooling depends upon the same temperature difference.
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Most Upvoted Answer
A body cooling from 80 degree Celsius to 70 degree Celsius takes 10 mi...
Explanation:

The rate of cooling of a body is proportional to the temperature difference between the body and the surrounding environment. This means that as the body cools down, the rate of cooling decreases.

Cooling from 80°C to 70°C:

- Temperature difference = 80°C - 25°C = 55°C
- Time taken = 10 minutes

Cooling from 70°C to 60°C:

- Temperature difference = 70°C - 25°C = 45°C
- The temperature difference is less than the previous case, so the rate of cooling will be slower.
- Therefore, it will take more than 10 minutes to cool from 70°C to 60°C.

Conclusion:

The correct answer is option 'B' - More than 10 minutes.
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A body cooling from 80 degree Celsius to 70 degree Celsius takes 10 minutes when left exposed to environmental conditions. If the body is to cool further from 70 degree Celsius to 60 degree Celsius under the same external conditions, it will takea)Same time of 10 minutesb)More than 10 minutesc)Less than 10 minutesd)Time will depend upon the environmental conditionsCorrect answer is option 'B'. Can you explain this answer?
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A body cooling from 80 degree Celsius to 70 degree Celsius takes 10 minutes when left exposed to environmental conditions. If the body is to cool further from 70 degree Celsius to 60 degree Celsius under the same external conditions, it will takea)Same time of 10 minutesb)More than 10 minutesc)Less than 10 minutesd)Time will depend upon the environmental conditionsCorrect answer is option 'B'. Can you explain this answer? for Chemical Engineering 2024 is part of Chemical Engineering preparation. The Question and answers have been prepared according to the Chemical Engineering exam syllabus. Information about A body cooling from 80 degree Celsius to 70 degree Celsius takes 10 minutes when left exposed to environmental conditions. If the body is to cool further from 70 degree Celsius to 60 degree Celsius under the same external conditions, it will takea)Same time of 10 minutesb)More than 10 minutesc)Less than 10 minutesd)Time will depend upon the environmental conditionsCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Chemical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A body cooling from 80 degree Celsius to 70 degree Celsius takes 10 minutes when left exposed to environmental conditions. If the body is to cool further from 70 degree Celsius to 60 degree Celsius under the same external conditions, it will takea)Same time of 10 minutesb)More than 10 minutesc)Less than 10 minutesd)Time will depend upon the environmental conditionsCorrect answer is option 'B'. Can you explain this answer?.
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