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  • An average person needs about 10000 kJ energy per day. The amount of glucose (molar mass = 180.0 g mol–1) needed to meet this energy requirement is _________ g. <img alt="\text { (Use : } \Delta_{\mathrm{C}} \mathrm{H} \text { (glucose

An average person needs about 10000 kJ energy per day. The amount of glucose (molar mass = 180.0 g mol–1) needed to meet this energy requirement is _________ g. \text { (Use : } \Delta_{\mathrm{C}} \mathrm{H} \text { (glucose) }=-2700 \mathrm{~kJ} \mathrm{~mol}^{-1} \text { ) }
 

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best_answer

Total energy required = 10^{4}\; \text{kJ}

Energy obtained from 1 mole of Glucose = 2700\; \text{kJ}

\therefore 2700 kJ is obtained from 180 g Glucose.

\therefore 10^{4}\; \text{kJ} will be obtained from  \frac{180}{2700} \times 10^{4}

                                                   = 667 \; g

Hence, the correct answer is 667.

Posted by

sudhir.kumar

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