Question

what is meant by specific heat how will you prove it what is meant by specific heat capacity how will you prove experimentally that different substances have different specific heat capacity

Answer 1

Specific Heat :
The amount of heat needed to raise the temperature of 1 kg substance by 1° C.

I just mentioning the Basics of Experiment :

Understanding:
1) When hot and cold substances are mixed in a insulated container such as a calirimeter , heat will flow from hot substance to cold substance .
2) Assuming heat absorbed by the container and heat lost to the environment are both negligible .
Then, we will use
Heat lost by the hot substance = Heat gained by the cold substance.

In this experiment, we will find that temperature change will be different for different substances.
Hence, different substances has different specific heat capacities.

Answer 2

Hi there.


Specific Heat Capacity ⇒ 

Amount of the heat energy required by the 1 kg of the substances to raise its temperature by the by 1 °C is called as Specific Heat Capacity.

Specific Heat capacity is denoted by the symbol 'c'. Its S.I. Unit is J/kgK.
 
[Note ⇒ Specific Heat capacity should not be confused with the Heat capacity. Both are different from each other].

Heat capacity is the amount of heat energy required by the body to raise its temperature by 1°C is called as Heat capacity.

The Mathematical Relation between the Specific heat capacity and Heat capacity is ⇒

Heat Capacity = Mass of the Substances × Specific Heat capacity.

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We an prove that the Specific Heat capacity of the of the substances are different from each other.

Explanation ⇒

Equal masses of the different substances required the different amount of the heat energy to raise there temperature by the same amount. For example, if equal masses of the Water and the copper are heated and there temperature are raised by 1 °C, then the amount of heat required by both the water and the copper is different, i.e., the heat energy requires by the water is nearly ten times that of copper. Thus, the amount of heat energy required by the Substances depends upon the nature or characteristics of the substances which is expressed in terms of its specific heat capacity.

Hence, we can say that the Specific heat capacity of all the substances is different.


Hope it helps.