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The average heat transfer co-efficient on a thin hot vertical plate suspended in still air can be determined from observations of the change in plate temperature with time as it cools Assume the plate temperature to be uniform at any instant of time and radiation heat exchange with the surrounding is negligible. The ambient temperature is the plate has a total surface area of  and a mass of 4 kg. The specific heat of the plate material is 2.5 kJ/kg K. The convective heat transfer co-efficient in  at the instant when the plate temperature is  and the change is plate temperature with time. is
  • a)
    10
  • b)
    20
  • c)
    30
  • d)
    40
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
The average heat transfer co-efficient on a thin hot vertical plate su...

Here negative sign shows that plate temperature decreases with the time.
From the given condition,
Heat transfer by convection to the plate = Rate of change of Internal energy,


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The average heat transfer co-efficient on a thin hot vertical plate su...
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The average heat transfer co-efficient on a thin hot vertical plate suspended in still air can be determined from observations of the change in plate temperature with time as it cools Assume the plate temperature to be uniform at any instant of time and radiation heat exchange with the surrounding is negligible. The ambient temperature is the plate has a total surface area of and a mass of 4 kg. The specific heat of the plate material is 2.5 kJ/kg K. The convective heat transfer co-efficient in at the instant when the plate temperature is and the change is plate temperature with time. is a)10b)20c)30d)40Correct answer is option 'A'. Can you explain this answer?
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The average heat transfer co-efficient on a thin hot vertical plate suspended in still air can be determined from observations of the change in plate temperature with time as it cools Assume the plate temperature to be uniform at any instant of time and radiation heat exchange with the surrounding is negligible. The ambient temperature is the plate has a total surface area of and a mass of 4 kg. The specific heat of the plate material is 2.5 kJ/kg K. The convective heat transfer co-efficient in at the instant when the plate temperature is and the change is plate temperature with time. is a)10b)20c)30d)40Correct answer is option 'A'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about The average heat transfer co-efficient on a thin hot vertical plate suspended in still air can be determined from observations of the change in plate temperature with time as it cools Assume the plate temperature to be uniform at any instant of time and radiation heat exchange with the surrounding is negligible. The ambient temperature is the plate has a total surface area of and a mass of 4 kg. The specific heat of the plate material is 2.5 kJ/kg K. The convective heat transfer co-efficient in at the instant when the plate temperature is and the change is plate temperature with time. is a)10b)20c)30d)40Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The average heat transfer co-efficient on a thin hot vertical plate suspended in still air can be determined from observations of the change in plate temperature with time as it cools Assume the plate temperature to be uniform at any instant of time and radiation heat exchange with the surrounding is negligible. The ambient temperature is the plate has a total surface area of and a mass of 4 kg. The specific heat of the plate material is 2.5 kJ/kg K. The convective heat transfer co-efficient in at the instant when the plate temperature is and the change is plate temperature with time. is a)10b)20c)30d)40Correct answer is option 'A'. Can you explain this answer?.
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