Chapter 1, Problem 1.9P

Interpretation Introduction

Interpretation:

The absolute pressure reading on the mercury manometer in kPa under the given conditions should be determined.

Concept introduction:

The pressure which is exerted by a fluid having certain column height depends upon acceleration due to gravity and density of the fluid.

${\text{P}}_{\text{gauge}}\text{ = hρg ------(1)}$

Where, h = height of the mercury

ρ = density

g = acceleration due to gravity

The formula for absolute pressure is given as:

${\text{P}}_{\text{absolute }}{\text{= P}}_{\text{gauge}}{\text{ + P}}_{\text{atm}}\text{ -------(2)}$

Where, P_gaugeis pressure of gauge,

P_atm is atmospheric pressure