Home
Class 12
CHEMISTRY
If 150 kJ of energy is needed for muscul...

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 consume to walk a distance of 5 km. Provided only 30 % energy is available for muscular work. The enthalpy of combustion of glucose is `3000 kJ mol^(-1)`

A

75g

B

30 g

C

180g

D

150g

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS & THERMOCHEMISTRY

    VMC MODULES ENGLISH|Exercise Impeccable|48 Videos
  • THERMODYNAMICS & THERMOCHEMISTRY

    VMC MODULES ENGLISH|Exercise Enable|49 Videos
  • THERMODYNAMICS

    VMC MODULES ENGLISH|Exercise JEE ADVANCED (ARCHIVE)|44 Videos

Similar Questions

Explore conceptually related problems

If 150 kJ of energy is needed for muscular work to walk a distance of one km, than how much of gulcose one has to consume to walk a distance of five km, provided only 30% energy is available for muscular work.The enthalpy of combustion of glucose is 3000 kJ mol^(-1)

If 150 kJ of energy is needed for muscular work to walk a distance of one km, than how much of gulcose one has to consume to walk a distance of five km, provided only 30% energy is available for muscular work.The enthalpy of combustion of glucose is 3000 kJ mol^(-1)

An athlete is given 180 g of glucose (C_(6)H_(12)O_(6)) . He utilises 50% of the energy due to internal combustion in the body. In order to avoid storage of energy in the body, calculate the masss of water he would need to perspire. Given enthalpy of combustion of glucose is -2800 kJ mol^(-1) and enthalpy of evaporation of water is 44 kJ mol^(-1)

An athlete is given 180 g of glucose (C_(6)H_(12)O_(6)) . He utilises 50% of the energy due to internal combustion in the body. In order to avoid storage of energy in the body, calculate the masss of water he would need to perspire. Given enthalpy of combustion of glucose is -2800 kJ mol^(-1) and enthalpy of evaporation of water is 44 kJ mol^(-1)

An athelet takes 20 breaths per minute at room temperature. The air inhaled in each breath is 200mL which contains 20% oxygen by volume, while exhaled air contains 10% oxygen by volume. Assuming that all the oxygen consumed if used for converting glucose into CO_(2) and H_(2)O_((l)) , how much glucose will be burnt in the body in one hour and what is the heat produced ? ( Room temperature -27^(@)C and enthalpy of combustion of glucose is -2822.5kJ mol^(-1) at 0^(@)C)

Animals operate under conditons of constant pressure and most of the process tht maintain life are isothermal ( in a broad sense) . How much energy is available for sustaining this type of muscular and nervous activity from the combustion of 1mol of glucose molecules under standard conditons at 37^(@) C (blood temperature) ? The entropy change is +182.4 JK^(-1) for the reaction stated above DeltaH_("combustion") [glucose]=-2808 KJ

How much energy in joules must be needed to convert all the atoms of sodium to sodium ions present in 4.6 mg of sodium vapours? Ionization enthalpy of sodium is 495 "kJ mol"^(-1)

Sharda can walk 8 1/3k m in one hour. How much distance will she cover in 2 2/5 hours?

An athlete is given 100 g of glucose ( C_6H_12O_6 ) of energy equivalent to 1560 kJ. He utilises 50% of this gained energy in the event. In order to avoid the storage of energy in the body, calculate the weight of water he would need to perspire. The enthalpy of evaporation of water is 44 kJ mol^(-1) .

Standard molar enthalpy of combustion of glucose is -2880 kJ. If only 25% of energy is available for muscular work and 1.0 km walk consumes 90 kJ of energy, what maximum distance (in km) a person can walk after eating 90 g of glucose.

VMC MODULES ENGLISH-THERMODYNAMICS & THERMOCHEMISTRY-Efficient
  1. In the Haber 's process of ammonia manufacture: N(2) (g)+3H(2) (g) t...

    Text Solution

    |

  2. In C(2)H(4) energies of formation of (C=C) and (C-C) are -145 kJ/mol a...

    Text Solution

    |

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

    Text Solution

    |

  4. A mol of Al(3)C(4)(s) reacts with water in a closed vessel at 27^(@)C ...

    Text Solution

    |

  5. triangleG^@ and triangleH^(@) for a reaction at 300K are -66.9 kJ/mole...

    Text Solution

    |

  6. A gaseous reaction was carried out first keeping the volume constant a...

    Text Solution

    |

  7. The standard entropies of CO(2(g)), C((s)), and O(2(g)) are 213.5, 5.7...

    Text Solution

    |

  8. Calcualte DeltaH(f)^(@) for chloride ion from the following data: 1/...

    Text Solution

    |

  9. Mg(s) + 2HCl(aq) rarr Mg Cl(2) (aq) + H(2)(g) , Delta(r )H^(@) = -467 ...

    Text Solution

    |

  10. Given the experimental information below: 2Sr(s) + O(2)(g) rarr 2SrO...

    Text Solution

    |

  11. What is the heat of reaction for the following reaction? CH(4)(g)+NH...

    Text Solution

    |

  12. 25.0 mL of 1.0M HCl is combined with 35.0 mL of 0.5 M NaOH. The initia...

    Text Solution

    |

  13. The reaction 3O(2)(g) rarr 2O(3)(g), Delta(r )H > 0. What can be conc...

    Text Solution

    |

  14. When 5.0 mL of a 1.0 M HCl solution is mixed with 5.0 mL of a 0.1 M Na...

    Text Solution

    |

  15. Which of the following reactions doesn’t represent the standard state ...

    Text Solution

    |

  16. What can be accurately predicted for the isomerization reaction betwee...

    Text Solution

    |

  17. At 5 xx 10^(5) bar pressure density of diamond and graphite are 3 g//c...

    Text Solution

    |

  18. The enthalpies of neutralization of a weak base AOH and a strong base ...

    Text Solution

    |

  19. What is the bond enthalpy of Xe-F bond ? XeF(4)(g)rarrXe^(+)(g)+F^(-...

    Text Solution

    |

  20. Combustion of sucuose is used by aeroic organisms for providing energy...

    Text Solution

    |