Question

gallium melts just above room temperature and is liquid over a very wide temperature range , which means it would be a suitable fluid for a high-temperature barometer. given its density, , what would be the height of the column if gallium is used as the barometer fluid and the external pressure is ?

Answer 1

Height = (101.3 kPa x 5.904 g/cm3) / (9.81 m/s2) = 617.5 cm for a gallium barometer column with an external pressure of 1 atmosphere (101.3 kPa).

What does pressure mean?

Pressure is a measure of force delivered per unit area perpendicular to an object's surface. Its identifier is "p." Pressure should be written with a lowercase p, according to IUPAC. But P is frequently written in uppercase. Using P vs p is dependent on the area in which one works, the proximity of other symbols representing quantities like power and velocity, and writing style. Scalar quantity is pressure. It links the normal force operating on the vector somewhere other (a vector parallel to the surface).

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