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Why is air at sea level denser than air ...

Why is air at sea level denser than air at mountains ?

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Due to comparatively highe atmospheric pressure at sea level, the air gets compressed and possesses higher density.
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Assertion : At higher peaks of mountains, people suffer from high altitude sickness (sluggish feeling, breathlessness etc.) due to lesser oxygen intake at each breather Reason : Air at sea level is dense because it is compressed by the mass of the air above it. The atmospheric pressure at higher peaks of mountains is lower causing the air at those heights to be much less dense than at sea level.

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What is the pressure at sea level ?

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The masspercentage in composition of dry air at sea level contains contains approximately 75.5% of N_(2) . If the total atmosphere pressure is 1 atm then what will be the partial pressure of nitrogen? [Given : average molecular mass of air = 29 ]

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ICSE-STATES OF MATTER : GASES AND LIQUIDS-SHORT ANSWER TYPE QUESTION
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  3. What is Dalton's law of partial pressure ? What do you understand by t...

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  4. What do you understand by the term suface tension?

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  6. State five important assumptions of the kinetic theory of matter.

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  10. Which of the following expressions is true for an ideal gas ?

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  11. What do the constants a and b signify in van der Waals' equation ?

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  12. A gas is enclosed in a room. The temperature, pressure, density and th...

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  13. A gas is enclosed in a room. The temperature, pressure, density and th...

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  14. A gas is enclosed in a room. The temperature, pressure, density and th...

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  15. Explain the following: The tyre of an automobile is inflated to a ...

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  16. Explain the following: The size of a weather balloon becomes large...

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  17. Why is air at sea level denser than air at mountains ?

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  18. A real gas behaves like an ideal gas if its

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  20. State Graham's law of diffusion.

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