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Ionisation Energy

41. If averag...

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41. If average molecular mass of air is 29 ,than assuming that n2 and o2 are there ,calculate mile percent of n2 mass percent of n2

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Q. If average molecular wt. of air is 29, then assuming

N_{2}

O_{2}

gases are there which options are correct regarding composition of air:
i) 75% by mass of

N_{2}

ii) 75% by moles

N_{2}

iii) 72.41% by mass of

N_{2}

What is the average molecular mass in dry air (78% N₂and 22%O₂)

Q. Dry air has a molar composition of

22 % O_{2}

78 % N_{2}

. Calculate the average molecular weight of dry air.

Q. An air sample containing

21 : 79

O_{2}

N_{2}

(molar ratio) is heated to

2400^{\circ} C

. If the mole percent of NO at equilibrium is

1.8 %

. Calculate the

K_{p}

of the reaction

N_{2} + O_{2} ⇌ 2 N O

Q. What is the approximate molecular mass of dry air containing 78%

N_{2}

O_{2}

?

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