If 150 kJ of energy is need for muscular work to walk a distance of one km , then how much of glucose (in grams) one has to consume to walk a distance of 5 km , provided only 
of energy is available for muscular work? (The enthalpy of combustion of glucose is 
)
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energy required for muscular work to walk a distance of one km . (Given)
energy required for work to walk of 5 km distance. Enthalpy of combustion is 
.
Glucose provide 
energy of its mass.
Molecular weight of glucose 
Weight of glucose required for work to 5 km ( 750 kj energy)
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