The heat evolved in the combustion of benzene is given by \[{{C}_{6}}{{H}_{6}}+7\frac{1}{2}{{O}_{2}}\to 6C{{O}_{2}}(g)+3{{H}_{2}}O(l);\,\Delta H=-3264.6\,kJ\] Which of the following quantities of heat energy will be evolved when \[39\,g\,{{C}_{6}}{{H}_{6}}\] are burnt [NCERT 1978; MP PET 1990; JIPMER 2001]

The heat evolved in the combustion of benzene is given by

1.	The heat evolved in the combustion of benzene is given by \[{{C}_{6}}{{H}_{6}}+7\frac{1}{2}{{O}_{2}}\to 6C{{O}_{2}}(g)+3{{H}_{2}}O(l);\,\Delta H=-3264.6\,kJ\] Which of the following quantities of heat energy will be evolved when \[39\,g\,{{C}_{6}}{{H}_{6}}\] are burnt [NCERT 1978; MP PET 1990; JIPMER 2001]
A.	816.15 kJ
B.	1632.3 kJ
C.	6528.2 kJ
D.	2448.45 kJ
Answer» C. 6528.2 kJ

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