Chemistry

In photosynthesis, glucose, C6H12O6, and O2 are produced from CO2 and H2O. Glucose from starches is the major fuel for the body.

6CO2(g)+6H2O(l)+680kcal⟶ C6H12O6(aq)+6O2(g)
How much heat, in kilojoules, is needed to produce 22.5 g of C6H12O6?

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