A 5.00-mol sample of
Interpretation:
The percent error in pressure value from the ideal gas equation as compared to the van der Waal’s equation for
Concept introduction:
The ideal gas equation elaborates the physical properties of gases by relating the pressure, volume, temperature and number of moles linked with each other with the help of gas laws.
This can be shown by:
Here, R represents the universal gas constant,
The percentage error is equal to the percent of difference between exact and experimental values, that is, if this difference is divided by the exact value and multiplied by 100 to make percent, then the percent error is obtained.
The deviation of real gas from the ideal gas can be calculated with the help of van der walls equation as follows:
Here, a and b represent the van der wall constants, which have different values for different gases, R represents the gas constant,
Answer to Problem 149AP
Solution:
Explanation of Solution
Given information:
Number of moles
Volume
Temperature
The equation for an ideal gas is as follows:
Substitute
The value of van der walls constant
The value of van der walls constant
Now, the corrected value in both pressure and volume can be calculated as follows:
For pressure,
For volume,
The van der walls equation for a gas is as follows:
Substitute
The value of pressure can be solved as
The error in pressure value from the ideal gas equation can be calculated as
Substitute
Hence, the percent error in pressure value from the ideal gas equation is
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Chapter 10 Solutions
Chemistry
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