On cold winter nights in days past, it was common to bring a hot object to bed with you. Which would keep you warmer through the cold night: a 10-kg iron brick or a 10-kg jug of hot water at the same high temperature? Explain.
@Abhisar

Question

On cold winter nights in days past, it was common to bring a hot object to bed with you. Which would keep you warmer through the cold night: a 10-kg iron brick or a 10-kg jug of hot water at the same high temperature? Explain.
@Abhisar

anonymous · Answer

10kg iron brick because the brick will stay warm longer due to the properties inside the brick

abhisar · Answer

Specific heat capacity of water is greater than Iron brick, so it will loose heat at much less rate than Iron

anonymous · Answer

warm water actually freezes faster than cold water in the freezer

abhisar · Answer

How can u say that ?

anonymous · Answer

i have done it

anonymous · Answer

try it

abhisar · Answer

i'll try, but i am not able to see any logic in it !

anonymous · Answer

lol, a warm soda that you put ice in actually stays cold longer than a cold soda you put ice in

anonymous · Answer

just like a box of freezer pops from the super market, they are not frozen but they take only a short time to freeze they are warm when you put them in the freezer

anonymous · Answer

do you follow me?

abhisar · Answer

okay..lets assume u r correct !

abhisar · Answer

do u know about sea breeze ?

abhisar · Answer

and land breeze ?

anonymous · Answer

no

abhisar · Answer

This is a phenomenon near seas....coastal areas

anonymous · Answer

ok

abhisar · Answer

actually, during day time due to sun rays, land gets heated up quickly that sea surface. This happens because specific heat of water is largest

anonymous · Answer

and at night the water is really cool?

abhisar · Answer

now air above the land rises up due to heat. To fill this gap air above the sea surface which is still cold rushes towards the land

abhisar · Answer

This causes a breeze and is called as sea breeze

abhisar · Answer

At night exact opposite happens

anonymous · Answer

ok i experience that every morning off the lake

abhisar · Answer

Since the specific heat of water is greatest it cools down slowly, so at night air above water rises and air above land which is cooler now rushes towards the sea. This is called as land breeze

anonymous · Answer

i see

abhisar · Answer

So the point is i'll still say that the answer is 10kg jug of hot water

anonymous · Answer

makes sense

anonymous · Answer

sending you private message

abhisar · Answer

ohkay !