Answer
Heat : Heat is a form of energy that flows between matter because of difference in their temperature .Its unit is Joule (J).
Specific Heat: It is the amount of heat required to raise the temperature of 1 gram of substance by one degree Celsius (also one Kelvin). Its unit is J/g. Deg. C
Temperature: It measures the intensity of heat , the hotness and coldness of a object. Its units are Deg. C or K.
By taking simple examples we can understand these properties:
Lets take 2 sample of the same metal at different temperatures. Then their atoms have different kinetic energy and average speed.When these 2 samples touch , heat transfer will happen from the hotter to the colder one until there temperature are same, kinetic energy and the average speed of atoms becomes same.
There are 2 samples of the same metals weighing 1 gram and 5 gram kept at the same temperature of 20 Deg. C. When they are brought into contact , the temperature of both remain the same. However , the 5 gram sample have 5 times more heat than 1 gram sample.
In other way, 5 times more heat is required to change the temperature of 5 gram piece from 20 Deg. C to 21 Deg. C.
Work Step by Step
Heat : Heat is a form of energy that flows between matter because of difference in their temperature.Its unit is Joule (J). It always flows from a hotter body to the colder one.
Specific Heat: It is the amount of heat required to raise the temperature of 1 gram of substance by one degree Celsius (also one Kelvin). Its unit is J/g. Deg. C
The phase transformation must not take place during this 1 degree rise in temperature. The specific heat changes for same substance according to its phase.
Temperature: It measures the intensity of heat , the hotness and coldness of a object. Its units are Deg. C or K. It also tells about molecular motion. Higher the temperature more is the molecular motion and vice-versa.
By taking simple examples we can understand these properties:
Lets take 2 sample of the same metal at different temperatures. Then their atoms have different kinetic energy and average speed. When these 2 samples touch , heat transfer will happen from the hotter to the colder one until there temperature are same, kinetic energy and the average speed of atoms becomes same.
There are 2 samples of the same metals weighing 1 gram and 5 gram kept at the same temperature of 20 Deg. C. When they are brought into contact , the temperature of both remain the same. However , the 5 gram sample have 5 times more heat than 1 gram sample.
In other way, 5 times more heat is required to change the temperature of 5 gram piece from 20 Deg. C to 21 Deg. C.
