Question

Is pressure scalar or vector quantity?

Answer 1

1. Scalar Quantity- Scalar describes a quantity that has magnitude but no definite direction.
2. Vector Quantity-A vector is a quantity that has a magnitude and acts in a certain direction.
3. Pressure is a scalar quantity rather than a vector quantity. It has a magnitude but no associated direction.
4. Inside a gas, pressure acts in all directions.
5. The pressure force at the surface of gas acts perpendicular to the surface. Even though force is measured in the direction of the area, the direction of the quantity remains unchanged, making pressure a scalar quantity.

Hence, pressure is a scalar quantity.