A) 3.264 kJ/mol
B) 32.64 kJ/mol
C) 326.4 kJ/mol
D) 163.22 kJ/mol
Correct Answer: C
Solution :
\[\underset{(6\times 12+6\times 1=78)}{\mathop{{{C}_{6}}{{H}_{6}}(l)+}}\,\frac{15}{2}{{O}_{2}}(g)\to 3{{H}_{2}}O(l)+6C{{O}_{2}}(g)\] \[\because \]The energy evolved when 78 g. benzene is burnt = 3264.4 kJ/mol \[\therefore \]The energy evolved when 7.8g benzene is burnt \[=\frac{3264.4\times 7.8}{78}=326.44\text{ }kJ/mol\]You need to login to perform this action.
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