Solution.
Since, according to the condition, the process occurs at constant pressure, and, therefore, the work will be equal to:
In this case, the difference between the final and initial volumes of the system is essentially equal to the volume of gaseous H2 resulting from the reaction.
We write the Clapeyron-Mendeleev equation (assuming that an ideal gas is formed upon dissolution of tin):
n(Sn) = n(H2), since the amount of tin substance, according to the reaction equation, is equal to the amount of hydrogen substance.
n(Sn) = 0.42 mole
A = 1013 J
Answer:
A = 1013 J
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