Question

11. What are the properties of air?​

Answer 1

Answer:

DEMONSTRATATION OF THE EFFECT OF VELOCITY OF AIR ON AIR PRESSURE - DEFINITION

Explanation:

Air velocity can be measured by sensing the pressure produced by the movement of the air. This application note will describe the basic relationships between air velocity and the pressure generated by air flow. Anyone who has put their hand out the window of a moving car has experienced the force applied by moving air.

The pressure developed by the air velocity is called the velocity head, and it is affected by the density of the air. The density of the air, in turn, is a function of the local atmospheric pressure and the temperature.

Answer 2

PROPERTIES OF AIR -

The properties of air are:

1. Air takes up space.

2. Air has mass.

3. Air is affected by heat.

4. Air exerts pressure.

5. Air can be compressed

6. Air is affected by altitude.

Air velocity can be measured by sensing the pressure produced by the movement of the air. This application note will describe the basic relationships between air velocity and the pressure generated by air flow. Anyone who has put their hand out the window of a moving car has experienced the force applied by moving air.

The pressure developed by the air velocity is called the velocity head, and it is affected by the density of the air. The density of the air, in turn, is a function of the local atmospheric pressure and the temperature. The equations that relate all these factors are:

$v = 1096.7 \sqrt{ \frac{dp}{p} } where \: d = \frac{1.325(pa)}{t}$

V= velocity d= air density, Pa= Barometric pressure, T= Air temperature , dp= pressure reading.

I hope it helps you mate !