Concept explainers
(a)
Interpretation:
Partial pressure of
Concept Introduction:
Ideal gas Equation:
Any gas is described by using four terms namely pressure, volume, temperature and the amount of gas. Thus combining three laws namely Boyle’s, Charles’s Law and Avogadro’s Hypothesis the following equation could be obtained. It is referred as ideal gas equation.
Here,
n is the moles of gas
P is the Pressure
V is the Volume
T is the Temperature
R is the gas constant
Molar mass can be determined using the given equation,
Here, n is the number of moles.
M is the Molar mass.
m is the Mass.
(a)
Answer to Problem 94QRT
Partial pressure of
Partial pressure of
Explanation of Solution
Reaction is shown below,
Number of moles of
Substitute the values to obtain the number of moles of
Partial pressure of
Partial pressure of
Partial pressure of
(b)
Interpretation:
Total pressure before the reaction has to be determined.
Concept Introduction:
Dalton’s law of partial pressure:
According to this law, the total pressure exerted by each gas in a mixture is equal to the sum of the individual partial pressure of the gases.
(b)
Answer to Problem 94QRT
Total pressure before the reaction is
Explanation of Solution
Partial pressure of
Partial pressure of
According to Dalton’s law, the total pressure exerted by each gas in a mixture is equal to the sum of the individual partial pressure of the gases at constant temperature and volume.
Therefore, total pressure before the reaction is determined as follows,
(c)
Interpretation:
Total pressure after the reaction has to be determined.
(c)
Answer to Problem 94QRT
Total pressure after the reaction is
Explanation of Solution
Total pressure before the reaction is
Number of moles of gas reactants and the number of moles of gaseous products are equal. Hence, the total pressure after and before the reaction will be same.
Total pressure after the reaction is
(d)
Interpretation:
The reactant that remains in the flask after the reaction has to be determined. Also the amount of remaining reactant has to be calculated.
Concept Introduction:
(d)
Answer to Problem 94QRT
Explanation of Solution
Reaction is shown below,
Number of moles of
Substitute the values to obtain the number of moles of
From the balanced equation, it is clear that
Here,
(e)
Interpretation:
Partial pressure of each gas after the reaction has to be determined.
(e)
Answer to Problem 94QRT
Partial pressure of
Partial pressure of
Explanation of Solution
Reaction is shown below,
From the balanced equation, it is clear that
Therefore, partial pressure of
In the given reaction,
Total pressure after the reaction is
Therefore, partial pressure of
(f)
Interpretation:
Pressure inside the flask if the temperature is raised to
(f)
Answer to Problem 94QRT
Pressure inside the flask is
Explanation of Solution
Given information is shown below,
Pressure inside the flask can be calculated using combined
Here, the volume of the tire is constant and equation becomes,
Therefore, pressure inside the flask can be determined as shown below,
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Chapter 8 Solutions
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