I want to know about heat capacity!!!
There are two types of heat capacities, one is specific heat capacity, denoted as lower case c,c and the other one is molar heat capacity, denoted as upper case c, C. The definition of specific heat capacity for a particular material is the heat required to increase the temperature of 1kg of the material by 1celcius.Q = mc dT where Q is heat m is mass of the material dT is the change of temperature of the material c is the specific heat capacity of the material So, c = Q/(m dT) ( unit is J/kg.celcius ) The definition of molar heat capacity for a particular material is the heat required to increase the temperature of 1 mol of the material by 1 celcius. As we know, the relation between mol and mass is, m = n M where m is mass of the material n is the mol of the material M is the molar mass of the material. From the equation above, Q = m c dT Q = n M c dT Q = n C dT C = Q/(n dT) ( unit si J/mol.celcius) where C is the molar heat capacityn is the mol of the material. We can see that the relation between c and C is C = M c where M is the molar mass of the material. If one object with higher heat capacity ( either specific or molar ), you will need more heat to rise the temperature of the object. For example, you will need to take more time to rise the temperature of water than to rise the temperature of alumium to a certain temperature with a constant heat source. This is because the heat capacity of water is higher than the heat capacity of aluminium. Sry, if i wrote many unimportant things.
The amount of heat required to raise the material's temperate by a degree. Temperature is just a measure of the speed of molecular movement inside a sample. At the theoretical limit of absolute zero all movement would be stopped, but that point can't be reached. There are several different ways to use the term heat capacity; but each term is a measure of how much energy it takes to increase the temperature.
The heat capacity of a substance is the amount of heat required to change its temperature by one degree, and has units of energy per degree
Specific heat capacity and heat capacity are different.Heat capacity or thermal capacity is the amount of heat energy required to raise the temperature of the whole body by 1 degree Celsius. If m is the mass of the body and C is the specific heat capacity, then:Q=mCT.As T=1degree Celsius, Q=mC×1=mc. Therefore thermal capacity=Mass of the body×Specific heat. Specific heat capacity,according to SI standards,of a substance is the amount of heat in joule(J) required to raise the temperature of 1 kg of the substance through 1 Kelvin.SI unit is J/kg ×K.
