Question

I have no problem on what my school is teaching now, except heat capacity :/

Can anyone teach me heat capacity? :)

Answer 1

Let us say we change the temperature of an object by \(\Delta T\) , measured in Kelvin. This will cause the object to have a corresponding change in energy \(\Delta Q\), measured in Joules. The ratio of these two values is a property of the object that you are working with and is called the heat capacity \(C\), defined as follows. \[C = \frac{\Delta Q}{\Delta T}\]Does that make sense?
More information: http://en.wikipedia.org/wiki/Heat_capacity

Answer 2

More directly, the heat capacity of an object is the amount of heat needed to raise its temperature, per degree temperature increase.

Answer 3

yea..

so say you take water.. and currently its at room temperature...and you have lets say metal rod (copper) that also is at room temperature

u wanna raise temperatures of both of them to exactly 80 degree Celsius..to make things even lets say both have the same mass.. would they require same amount of heat energy?

what does ur stomach say? heating the metal rod quickly raises its temperature right? but water takes a lot of time yea ? well, so we can say water has a high heat capacity.. (can take a lot of heat without raising its temperature ), but copper not much..

infact, water has a HUUUGEEE heat capacity.... that is something that u have experienced.. on hot summer days.. sometimes marble floor gets so heated up right?.. why ? why is its temperature so high, (small heat capacity).. marble can't take much heat.. its temperature rapidly goes up..

but any day you take a glass of water, it maybe warm but definitely not as hot as marble yea ? high heat capacity!

Answer 4

Thank you guys so much <3
I would give a medal to you all, but I can't :(