3. Specific Volume

Specific Volume is defined as amount of volume occupied by unit mass of the fluid. It can also be defined as the ratio of volume and mass. It is denoted by v.

v = v/m

where v is the specific volume.
m is the mass of the body.
v is the volume of the body.

In SI units mass has units of Kg.
In SI units volume has the units of m³ 
Therefore units of specific volume becomes v = v(m³)/m(kg).

It's units are m³/kg in SI units.

It can be found that it is the reciprocal of density(ρ).
Therefore, (Specific volume)v = 1/(density)ρ 

Note:

1.   Specific volume of water = 0.001m³/kg
2. Specific volume of air = 0.78125 m³/kg

Video:

Example Problem:
 Find the specific volume of mercury whose density is found to be 13600kg/m^{3
Sol: 
We know that specific volume is equal to the inverse of density. Therefore,
specific volume is equal to 1/13600}m³/kg
=>v_mercury = 0.000073529m³/kg
 ^{Python Program:
Input:}

def specific_volume(mass,volume):
 return (volume/mass)

def specificVolume(density):
 return (1/density)