10Pa

10Pa is the shorthand notation for ten Pascals, a unit of pressure in the International System of Units (SI). The Pascal (Pa) is named after the French mathematician and physicist Blaise Pascal and is defined as one newton of force per square metre of area. Consequently, 10Pa equates to 10 newtons per square metre, a pressure level that is extremely low compared to atmospheric pressure at sea level, which is approximately 101,325Pa. Because of this, 10Pa is often encountered only in specialized scientific contexts such as vacuum technology, where pressure readings within the range of 1 to 10 Pa indicate high‑vacuum conditions. In such environments, materials and equipment must be designed to withstand the low ambient force, as small leaks can significantly alter system performance.

Although 10Pa rarely appears in everyday life, it is a useful reference point for researchers calibrating pressure sensors, testing gas permeability, and studying phase transitions in thin films, where minute variations in pressure can affect the behavior of molecular layers. In educational settings, the value often serves as an illustrative example when teaching the scale of SI units and the concept of pressure relative to atmospheric standards.