If 150 kJ of energy is needed for muscular work to walk a distance of one km , then how much of glucose one has to consumeto walk a distanceof five km, provided only `30%` energy is available for muscular work. The enthalpy of combustion of glucose is `3000kJ mol^(-1)`A. 75gB. 30gC. 180gD. 150g

If 150 kJ of energy is needed for muscular work to walk a distance of

1.	If 150 kJ of energy is needed for muscular work to walk a distance of one km , then how much of glucose one has to consumeto walk a distanceof five km, provided only `30%` energy is available for muscular work. The enthalpy of combustion of glucose is `3000kJ mol^(-1)`A. 75gB. 30gC. 180gD. 150g
Answer» Correct Answer - d Energy consumed for walking a distance of5 km `= 150 xx5kJ =750 kJ` 1 mole of glucose , `C_(6)H_(12)O_(6) ( 180g)` gives theoretically energy `= 3000kJ` Actual energy available`= ( 30)/( 100) xx 3000 = 900 kJ` Thus, for 900kJ of energy , glucose required `= 180 g` `:. `For 750 kJ of energy , glucose required `= ( 180)/( 900) xx750 g = 150 g`

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If 150 kJ of energy is needed for muscular work to walk a distance of one km , then how much of glucose one has to consumeto walk a distanceof five km, provided only `30%` energy is available for muscular work. The enthalpy of combustion of glucose is `3000kJ mol^(-1)`A. 75gB. 30gC. 180gD. 150g

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