1.

The values of heat of formation of \[S{{O}_{2}}\] and \[S{{O}_{3}}\] are \[-298.2\,kJ\] and \[-98.2\,kJ\]. The heat of reaction of the following reaction will be                 \[S{{O}_{2}}+\frac{1}{2}{{O}_{2}}\to S{{O}_{3}}\]              [BHU 1997; CBSE PMT 2000]

A.                 \[-200\,kJ\]        
B.                 \[-356.2\,kJ\]
C.                 \[+200\,kJ\]       
D.                 \[-396.2\,kJ\]
Answer» D.                 \[-396.2\,kJ\]


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