Question

list the properties of air and describe the experiments that prove these properties​

Answer 1

• Air takes up space.
• Air has mass.
• Air is affected by heat.
• Air exerts pressure.
• Air can be compressed.
• Air is affected by altitude.

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Answer 2

Answer:

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

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

P

dp

where d=

T

1.325(Pa)

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

AIR PRESSURE AND ATMOSPHERIC PRESSURE - DEFINITION

Air is a physical substance. It is a mixture of several gases present in the atmosphere and it has its own weight. Air exerts pressure on the earth's surface. The weight of air on a unit area of the earth is called Air Pressure.

Atmospheric pressure is an important factor in producing changes in weather. Atmospheric pressure decreases with height.

PROPERTIES OF AIR - DEFINITION

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.