[pvveld]

Lets say someone wants to find something that increases in volume by a lot at the same temperature.
Lets say 283 Kelvin.
Example : liquid hydrogen increases under great pressure a little over 2000 times to its gassious state.
              Nitroglycerin expands about 1250 times(when back to the same 283 Kelvin)

Does anyone know of a way to obtain a greater volume increase? Lets say 5000 times.