Question

Question #d2ef3

Answer 1

1440 kJ of heat is evolved.

`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