At the end of 2009, global population was about 6.8 billion people. What mass of glucose in kg would be needed to provide 1500 Cal/person/day of nourishment to the global population for one year? Assume that glucose is metabolized entirely to CO2(g) and H2O(l) according to the following thermochemical equation:

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CH1206(s) + 602(g)6 CO2(g) 6H200) ΔΗ'--2803 kJ