Interpretation: The expansion work done when
Concept introduction:

Answer to Problem 2A.1ST
The expansion work done when
Explanation of Solution
It is given that the mass of water is
The temperature is
Pressure is
The conversion of Celsius to Kelvin is done as,
Therefore, the conversion of
The balanced chemical equation for the electrolysis of water is,
First, the number of moles of oxygen and hydrogen are calculated by the formula,
The molar mass of water is
For oxygen,
For hydrogen,
Now, the initial volume of water is assumed to be negligible when compared to final volume of both hydrogen and oxygen gas. Therefore,
The ideal gas equation is given by the expression,
Now, the expansion work is calculated by the formula,
Substitute the value of
Substitute the values of number of moles of oxygen and hydrogen, universal gas constant and temperature in the above equation (5) to calculate the expansion work.
The conversion of joule into
Therefore, the conversion of
Hence, the expansion work done when
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Chapter 2 Solutions
PHYSICAL CHEMISTRY-WEBASSIGN
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