Is the refractive index either an intensive or extensive property of matter, or neither, a different property?
is the refractive index of an element or compound an intensive, extensive or other type of property? or not a property at all? what would it be classified as?
Answer:
Refractive index is an intensive property.
INtensive properties are INdepedent of the "size" of the system. Extensive properties depend on the system size.
For example, mass, volume, resistance, enthalpy, internal energy, are all extensive properties because their values scale with the size of the system under consideration.
Refractive index, density, molar enthalpy, chemical potential, temperature, pressure, bulk modulus, viscosity, are all intensive properties because their values do not depend on how large the system is.
Things can get a little confusing; the energy (J), entropy (J/K), enthalpy (J), and heat capacity (J/K) are all extensive quantites. On the other hand, the specific energy (J/mol), molar entropy (J/mol*K), molar enthalpy (J/mol), and specific heat capacity (J/mol*K or J/mol*kg) are all intensive quantities. In general, if you see a property that has is expressed in "something per mol", "something per mass", or "something per volume" units, then it is an intensive quantity. However, the absence of such a "size normalization" in the units does *not* automatically mean that the property is extensive.RXN between Propane and Oxygen C3H8+5O2---3CO2 +4H2O. Which ratio of oxygen to propane is correct?
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Answer:
Refractive index is an intensive property.
INtensive properties are INdepedent of the "size" of the system. Extensive properties depend on the system size.
For example, mass, volume, resistance, enthalpy, internal energy, are all extensive properties because their values scale with the size of the system under consideration.
Refractive index, density, molar enthalpy, chemical potential, temperature, pressure, bulk modulus, viscosity, are all intensive properties because their values do not depend on how large the system is.
Things can get a little confusing; the energy (J), entropy (J/K), enthalpy (J), and heat capacity (J/K) are all extensive quantites. On the other hand, the specific energy (J/mol), molar entropy (J/mol*K), molar enthalpy (J/mol), and specific heat capacity (J/mol*K or J/mol*kg) are all intensive quantities. In general, if you see a property that has is expressed in "something per mol", "something per mass", or "something per volume" units, then it is an intensive quantity. However, the absence of such a "size normalization" in the units does *not* automatically mean that the property is extensive.