What is the primary reason LPG is stored in liquid form?

The primary reason LPG (liquefied petroleum gas) is stored in liquid form is to allow for expansion to a considerably larger gas volume. When LPG is stored as a liquid, it occupies significantly less space compared to when it is in gas form. This liquid state under pressure allows storage tanks to hold a greater volume of fuel in a more compact area. Upon release from the container, the liquid quickly vaporizes and expands into gas, which can then be used efficiently in various applications. The conversion ratio from liquid to gas is a key factor that makes this method of storage practical for both transportation and usage.

While the other options touch on important aspects of LPG handling and safety, they do not capture the essence of why liquid storage is preferred in terms of volume efficiency for gas use.