Question

The quantity of heat, in joules or calories, required to raise the temperature of 1 gram of a substance 1°C.

Answer 1

Answer : The quantity of heat, in joules or calories, required to raise the temperature of 1 gram of a substance 1°C is known as, Specific heat capacity.

Explanation :

Heat capacity : It is defined as the heat required to raise the temperature by one degree.

Specific heat capacity : It is defined as the amount of heat absorbed by one gram of a substance to raise its temperature by one degree Celsius.

Formula used for specific heat capacity :

`C=(q)/(m* \Delta T)`

where,

C = specific heat capacity

m = mass of a substance

q = heat required

`\Delta T` = change in temperature of substance

Answer 2

The specific heat is the amount (quantity) of heat per unit mass required to raise the temperature by one degree Celsius.
For water specific heat is 1 calorie/gram·°C or 4,186 joule/gram·°C, that means that calorie, cal, is amount of energy (heat) needed to increase the temperature of one gram of water by 1°C.