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First off, it's just "quicker", never "more quicker" which is utter rubbish.

"Cool down" is another one of those rubber words and phrases that mean different

things to different people as well as to the same people in different situations or at

different times. And "quicker" is another one as well, too.

-- The rate of heat loss from an object depends on many things. One of them is

always the difference between the temperature of the object and the temperature

of its surroundings. So, if you have two identical objects that have different temperatures

and are in the same place, the one with the higher temperature will lose heat faster to the

surroundings.

-- Another factor is the size and composition of the object, because they determine

how much actual heat energy the object contains. So, if two objects of different

size and substance start out at different temperatures, there's no general way to

say which one will lose heat at a faster rate.

-- The shape of the object also matters, because that involves the amount of

surface area it has through which it can dump heat. So if you have two objects of

the same volume, made of the same substance, and at the same temperature, the

one with more lumps, bumps, wrinkles, and crinkles in its surface will lose heat at a

faster rate than the smooth, spherical one. That's why auto radiators are covered

with a structure that has millions of leaves and holes in it. It's also the main reason

why you try to curl up into a ball when you're cold.

-- This is the story of how fast an object loses heat energy to its surroundings.

That's NOT the same thing as how soon it reaches the temperature you want,

which may be what you mean when you say "cool down more quicker".

In general, there's no way to tell which object will reach the temperature you want

more quicker. For example, a red hot cast iron pot off the stove may be cool enough

to handle long before a glass jug that was filled with boiling water.

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12y ago

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