Explain extensive property and intensive property.

1.	Explain extensive property and intensive property.
Answer» Solution :Extensive property : An extensive property is a property WHOSE VALUE depends on the QUANTITY or size of matter present in the system. e.g., mass, volume, internal energy, enthalpy, heat capacity, etc. Intensive property : Intensive property is those properties which do not DEPEND on the quantity or size of matter present e.g., temperature, density, pressure etc. A molar property, `chi_(m)`, is the value of an extensive property `chi` of the system for 1 mol of the substance. If n is the amount of matter, `chi_(m) = (chi)/( n)` is independent of the amount of matter. Other examples are molar volume, `V_(m)` and molar heat capacity, `C_(m)`. Take a gas enclosed in a container of volume V and at temperature T [Fig. (a)). Let us make a PARTITION such that volume is halved, each part [Fig. 6.6 (b)] Now has one of the original volume `{:(V),(2):}`, but the temperature will still remain the same. Therefore, it is clear that volume V is an extensive property and temperature T is an intensive property.

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