Question

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 1

Extensive properties . Mass , internal energy , heat capacity.
Intensive properties.Pressure, molar heat capacity, density, mole fraction , specific heat, temperature and molarity.
Note. Mole fraction or molarity of a solution is same whether we take a small amount of the soution or large amount of the solution . Otherwise too. ratio of two extensive properties is always intensive, i.e.,
`("Extensive")/(Extensive")= ` Intensive
e.g., Mole fraction `= ("Molar of the component") /( "Total no. of moles")=( "Extensive")/( "Extensive") ` and Molarity`= ( "Moles")/( "Volume") = ( "Extensive")/("Extensive")`