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# a sphere, a cube and a thin circular plate, all made of the same material and having the same mass are initially heated to the temperature of 250 degree celsius. when left in air at room temperature, what will be their response to cooling?

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### Mohammed

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## A sphere, a cube and a thin circular plate, all made of the same material and having the same mass are initially heated to the temperature of 250 degree Celsius. When left in air at room temperature, what will be their response to cooling?a)Cube will cool faster than sphere but slower than the circular plateb)They will cool at the same ratec)Sphere will cool fasterd)Circular plate will cool at the slower rateCorrect answer is option 'A'. Can you explain this answer?

Q = h A (T – t). Here cooling depends upon the surface area of the body.

Chemical Engineering Question  >  A sphere, a cube and a thin circular plate, a...

A sphere, a cube and a thin circular plate, all made of the same material and having the same mass are initially heated to the temperature of 250 degree Celsius. When left in air at room temperature, what will be their response to cooling?

a)

Cube will cool faster than sphere but slower than the circular plate

b)

They will cool at the same rate

c)

Sphere will cool faster

d)

Circular plate will cool at the slower rate

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A sphere, a cube and a thin circular plate, all made of the same material and having the same mass are initially heated to the temperature of 250 degree Celsius. When left in air at room temperature, what will be their response to cooling?a)Cube will cool faster than sphere but slower than the circular plateb)They will cool at the same ratec)Sphere will cool fasterd)Circular plate will cool at the slower rateCorrect answer is option 'A'. Can you explain this answer?

Q = h A (T – t). Here cooling depends upon the surface area of the body.

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Solutions for A sphere, a cube and a thin circular plate, all made of the same material and having the same mass are initially heated to the temperature of 250 degree Celsius. When left in air at room temperature, what will be their response to cooling?a)Cube will cool faster than sphere but slower than the circular plateb)They will cool at the same ratec)Sphere will cool fasterd)Circular plate will cool at the slower rateCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Chemical Engineering. Download more important topics, notes, lectures and mock test series for Chemical Engineering Exam by signing up for free.

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## A sphere , a cube and a thin circular plate,all of same materials and same mass, are initially heated to same high temperature.

Click here👆to get an answer to your question ✍️ A sphere , a cube and a thin circular plate,all of same materials and same mass, are initially heated to same high temperature.

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B

C

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## Cube will cool fastest and plate the slowest.

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Updated on : 2022-09-05

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Correct option is C)

## The circular plate has maximum surface area and as such it cools the fastest. For a given volume (mass in this case),a sphere has the least surface area and accordingly cools the slowest.

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### A sphere, a cube and a thin circular plate have same mass and are made of the same material. All of them are heated to the same temperature. The rate of cooling is :

This question has multiple correct options

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Medium View solution > 3 o

C. The body which cools rapidly is :

I: A sphere

Medium View solution > II: A cube

III: A thin circular plate;

All made of the same material having the same mass are initially heated to 200

0

C. Identify the order in which the objects cool faster when left in air at room temperature :

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Mohammed 6 day ago

Guys, does anyone know the answer?