What determines the state of matter of a substance?

1 Answer
Jan 29, 2018

The degree of intermolecular or at least inter-particle force....

Explanation:

Gaseous phases specify a small or marginal degree of intermolecular force....there is little interaction between molecules of gas, and in fact there are various state functions which relate the macroscopic variables, pressure, temperature, and amount of substance using purely Newtonian physics. The Gas laws are an example of this, and given certain reasonable assumptions, state functions of #P, V, T#, may be developed.

On the other hand, for condensed phases, the degree of inter particle or intermolecular force is considerable....and the volumes of these phases are largely invariant....