Ok. there's a fixed ratio for Nitrogen as it expands from liquid to gas. From liquid, it expands 696 times from its boiling point at atmospheric pressure.

yes

The expansion ratio of liquid ammonia to gas is approximately 850:1 at room temperature and pressure. This means that 1 volume of liquid ammonia will expand to approximately 850 volumes of ammonia gas when evaporated.

Liquid propane expands about 270 times when it changes from liquid to gas at atmospheric pressure and room temperature. This expansion ratio allows for efficient storage and transportation of propane as a liquid, which can then be converted to a gas for use in applications such as heating and cooking.

liquid to gas is called evaporation and gas to liquid is condensation