1. OBJECT A HAS A TEMPERATURE OF 78K AND OBJECT B HAS A
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B. Add 233 g of KCl to a 3.5 L container; then add enough water to dissolve the KCl and fill the container to the 3.5 L mark.
Given :
Energy , E = 330 J .
Initial temperature , .
Final temperature , .
Mass of benzene , m = 24.6 g .
To Find :
The molar hear capacity of benzene at constant pressure .
Solution :
Molecular mass of benzene , M = 78 g/mol .
Number of moles of benzene :
Energy required is given by :
Hence , this is the required solution .