If 50 kJ of energy is needed for muscular work to walk a distance of 1 km, then how much glucose one has to consume to walk a distance of 5km provided only 30% energy is available for muscular work. The enthalpy of combustion of glucose in 3000 kJ mol^(-1).

If 50 kJ of energy is needed for muscular work to walk a distance of 1

1.	If 50 kJ of energy is needed for muscular work to walk a distance of 1 km, then how much glucose one has to consume to walk a distance of 5km provided only 30% energy is available for muscular work. The enthalpy of combustion of glucose in 3000 kJ mol^(-1).
Answer» 75 g 30 g 180 g 150 g Solution :ENERGY consumed for walking a DISTANCE of 5km = `150 xx 5 = 750 kJ` Energy provided by 1 mol of GLUCOSE= 3000 kJ Actual energy provide = `3000 xx (30)/(100) = 900 kJ` 900 kJ of energy require glucose = 180 g 750 kJ of energy require glucose = `(180 xx 750)/(900) = 150 g`