The factors that determine the states of matter can be determined by two laws:

1) Charle’s Law:

According to this law, when pressure is kept constant, the volume of an ideal gas (V) is directly proportional to the absolute temperature (T). Mathematically, it can be written as:

V₁/T₁ = V₂/T₂

2) Boyle’s Law.

According to this law, when the temperature is kept constant, the pressure of the given mass of an ideal gas (P) is inversely proportional to the volume(V). Mathematically, it can be written as:

P₁V₁ = P₂V₂

If we combine the above two laws, we get:

P₁V₁/T₁ = P₂V₂/T₂

So we get to know that pressure, volume and temperature along with mass are the parameters that determine the state of a  matter.