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Answer 1 · 2014-10-31T23:42:08

1440 kJ of heat is evolved.

$C_{6} H_{12} O_{6} (s) + 6 O_{2} (g) \to 6 C O_{2} (g) + 6 H_{2} O_{(l)}$ $C_6H_(12)O_(6)(s)+6O_(2)(g)rarr6CO_(2)(g)+6H_2O_((l))$

$DeltaH=-2806 kJ.mol^(-1)$

I will assume the glucose is INXS so:

6 mol $O_2$ produce 2806 kJ

$M_r$ of $O_2$ = 16 +16 = 32

So 1 mol $O_2$ weighs 32g

So 6 x 32 = 192g $O_2$ produces 2806 kJ.

So 1g $O_2$ produces 2806/192 = 14.6 kJ

So 98.6g $O_2$ produces 14.6 x 98.6 = 1440 kJ