Question

You find a pressure gauge in the lab and the spec sheet says that the maximum pressure it can read a maximum of 2 inches of water. What is the maximum pressure in pascals?

Answer 1

Answer:

Maximum pressure in pascal is 497.84 pa

Explanation:

Pressure is given by $P=\rho g h$

where $\rho$ is density of water = 1000$kg/m^3$

height of the water $h$ is 2 inches = $2\times 25.4=50.8 mm=50.8\times 10^{-3} m$

Maximum pressure in pascal is

$P=1000\times 9.8\times 50.8\times 10^{-3}\\p=497.84 Pa$