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If the components of air are N(2), 78%,...

If the components of air are `N_(2), 78%, O_(2), 21%, Ar, 0-9%` and `CO_(2), 0-1%` by volume, what would be the molecular weight of air?

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To find the molecular weight of air based on its components, we can follow these steps: ### Step 1: Identify the components and their percentages The components of air and their respective percentages by volume are: - Nitrogen (N₂): 78% - Oxygen (O₂): 21% - Argon (Ar): 0.9% - Carbon Dioxide (CO₂): 0.1% ...
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Atmospheric air has 78 % N_(2) , 21 % O_(2) , 0.9 % Ar and 0.1 % CO_(2) by volume. What is the molecular mass of air in the atmosphere ?

Amospheric air has 78% N_(2) : 21% O_(2) : 0.9% Ar and 0.1% CO_(2) by volume. What is the molecular mass air in the atmosphere?

Knowledge Check

  • A sample of impure air contains 80% N_(2) . 10% 5% CO_(2) and 5% Ar by volume. The average molecular weight of the sample is : [Ar=40]

    A
    29.4
    B
    29.8
    C
    30
    D
    none of these

  • A sample of impure air contains 80% N_(2) , 10% O_(2) 5% CO_(2) and 5% Ar by volume. The average (At wt. of Ar = 40)

    A
    29.4
    B
    29.8
    C
    30
    D
    29.6

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    A gaseous mixture contains 40% O_(2), 40% N_(2), 10% CO_(2), 10% CH_(4) by volume. Calculate the vapour density of the gaseous mixture.

    Taking N_(2) and O_(2) as main compounts of air ( 79% N_(2),21%O_(2) by volume ) what is the molecular mass of air? How has it been arrived at ?

    At sea level, the composition of dry air is approximately N_(2)=75.5% , O_(2)=23.2% , and Ar=1.3% by mass. If the total pressure at sea level is 1 "bar" , what is the partial pressure of each component?

    Only N_(2) and CO_(2) gases remain after 15.5 g of carbon is treated with 25 litres of air at 25^(@)C and 5.5 atm pressure. Assume air of composition: O_(2)-19%,N_(2)-80% and CO_(2)-1% (by volume). Calculate the heat evolved under constant pressure Given, C+O_(2) to CO_(2),DeltaH=-94.05"kcal/mole" C+(1)/(2)O_(2) to CO,DeltaH=-26.41"kcal/mole"

    What is % of CO_(2) in the pure dry air ?

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