The enthalpy change involved in the oxidation of glucose is `-2880kJ mol^(-1)`. Twenty five per cent of this energy is available for muscular work . If `100kJ` of muscular work is needed to walk one kilometre, what is the maximum distance that a person will be able to walk after eating `120g` of glucose ?

Explanation

To solve the problem, we will follow these steps:

### Step 1: Calculate the number of moles of glucose in 120 g.
The molecular weight of glucose (C₆H₁₂O₆) is 180 g/mol.

\[ \text{Number of moles of glucose} = \frac{\text{mass}}{\text{molar mass}} = \frac{120 \text{ g}}{180 \text{ g/mol}} = 0.6667 \text{ moles} \]
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