What is the S.I unit of pressure?

Certainly! The SI unit of pressure is the pascal, often abbreviated as "Pa." The pascal is named after the French mathematician and physicist Blaise Pascal, who made significant contributions to the study of fluids and pressure.

Pressure is defined as the force applied per unit area. Mathematically, pressure (P) is given by the formula:

P = F/A

Where:

P: P is the pressure,

F: F is the force applied, and

A: A is the area over which the force is applied.

The SI unit of force is the newton (N), and the SI unit of area is the square meter (m²). Therefore, when force is measured in newtons and area is measured in square meters, the resulting unit of pressure is newtons per square meter (N/m²), which is equivalent to pascals (Pa).

In summary, the SI unit of pressure is the pascal (Pa). This unit is named after Blaise Pascal and is defined as one newton of force applied over an area of one square meter. It is used extensively in various scientific and engineering fields to quantify pressure in different contexts.