Advertisements
Advertisements
Question
Briefly state the variations in the vertical distribution of pressure.
Advertisements
Solution
Many factors like the slope of the land, presence of winds, and the temperature affect the pressure of air vertically. The rate of decrease is 100 millibars per 1000 meters of height gained. There is a thin air cover at high altitudes, so the percentage and amount of oxygen are also less.
RELATED QUESTIONS
What do you understand by atmospheric pressure?
Illustrate with the help of a labelled diagram of a simple barometer that the atmospheric pressure at a place is 76 cm of Hg.
State two advantages of an aneroid barometer over a simple barometer.
Why does a fountain pen leak at high altitude?
At sea level, the atmospheric pressure is 1.04 x 105 Pa. Assuming g = 10 m s-2 and density of air to be uniform and equal to 1.3 kg m-3, find the height of the atmosphere.
What is an aneroid barometer?
Draw a neat and labeled diagram to explain its construction and working.
At higher altitudes, air becomes ______
One atmosphere is equivalent to 1,00,000 newton force acting on one square metre.
The air pressure at sea level is referred to as ______.
