Q. 59

Extensive properties depend on the quantity of matter but intensive properties do not. Explain whether the following properties are extensive or intensive.

Mass, internal energy, pressure, heat capacity, molar heat capacity, density, mole fraction, specific heat, temperature and molarity.

Answer :

Extensive property: Those properties which depend on the quantity of the system are known as extensive property.

Mass, internal energy, heat capacity


Intensive property: those properties which depend on the nature of the substance and not the quantity of the system are known as an intensive property


Pressure, molar heat capacity, density, mole fraction, specific heat, temperature, molarity


NOTE:


Mole fraction and molarity are intensive property because:


= intensive property


That means when two extensive quantity divide by each other, they form an intensive property


Example : = = intensive


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