
Concept explainers
Interpretation: The mole fraction of
Concept Introduction: The mole fraction of
The partial density of a compound is determined by the formula:
The formula relating partial density and total density is:

Answer to Problem 160CP
The mole fraction of
Explanation of Solution
Given:
Equimolar mixture of gases,
The density of mixture at STP is
The partial density of each gas,
Molar mass of
Let
Now, using the relation,
Substituting the values:
Substituting the value of
Hence, the mole fraction of
Interpretation: The density of gas mixture after the completion of reaction needs to be determined.
Concept Introduction: The mole fraction of
The partial density of a compound is determined by the formula:
The formula relating partial density and total density is:

Answer to Problem 160CP
The density of gas mixture after the completion of reaction is
Explanation of Solution
Given:
The
The balanced reaction for the formation of
From the balanced reaction, it can be observed that 1 mole of
Now, determining the limiting reagent:
Since, from part (a) the initial moles of the reactants are
Thus,
The density of the gas mixture is calculated using formula:
The partial density of
Molar mass of
Substituting the values:
Calculating the mole fraction of each component as:
The sum of total final moles is:
Now, the mole fraction of each component is calculated using formula:
So:
Substituting the values in equation (1):
Hence, the density of gas mixture after the completion of reaction is
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Chapter 5 Solutions
EBK CHEMICAL PRINCIPLES
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