Which pressure vessel is difficult to design, gas or liquid?

Question

Accepted Answer

Both gas and liquid pressure vessels can be difficult to design, depending on various factors.

The difficulty of designing a pressure vessel depends on factors such as the properties of the gas or liquid, the desired pressure and temperature, and the material used for construction.
Gas pressure vessels may require additional considerations such as compressibility and potential for explosion or leakage.
Liquid pressure vessels may require considerations such as thermal expansion and potential for corrosion or erosion.
Examples of challenging pressure vessel designs include high-pressure gas cylinders used in aerospace applications and large-scale liquid storage tanks used in chemical industries.

Accepted Answer

Gas, because it can be compressed at very high pressure compared to liquids.

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