1.

According to the equation, C_6H_6(l)+15/2O_2(g)rarr3H_2O(l)+6C_2(g) triangleH=-3264.4kJ/mol, the energy evolved when 7.8 g of benzene is burnt in air will be:

Answer»

163.22 kJ/mol
326.4 kJ/mol
32.64 kJ/mol
3.264 kJ/mol

Answer :B


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