Home
Class 12
CHEMISTRY
Enthalpy of combustion of carbon is -395...

Enthalpy of combustion of carbon is -395 kj.The amount of carbon needed to evolve 39.5 kJ is

A

1 mole

B

0.5 mol

C

1.2 g

D

6 g

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • Chemical Thermodynamics

    CHETANA PUBLICATION|Exercise EXERCISE|95 Videos
  • CHEMICAL KINETICS

    CHETANA PUBLICATION|Exercise EXERCISE|112 Videos
  • COORDINATION COMPOUNDS

    CHETANA PUBLICATION|Exercise EXERCISE|179 Videos

Similar Questions

Explore conceptually related problems

The enthalpies of combustion of carbon and carbon monoxide are -393.5 and -283 kJ mol^(-1) respectively. The enthaly of formation of carbon monoxide per mole is :

The heat of combustion of carbon to CO_(2) is -393.5kJ//mol .The heat released upon the formation of 35.2g of CO_(2) from carbon and oxygen gas is

DeltaU of combustion of methane is -X kJ mol^-1 . The value of DeltaH is

If the heat of combustion of carbon monoxide at constant volume and at 17^@ C is -283.3 kJ, then its heat of combustion at constant pressure is _________ . (R = 8.314 J K^-1 mol^-1 )

Estimate the standard enthalpy of combustion of acetylene from the following data: Delta_fH^@ (CO_2) =-393.5 kj mol^(-1) Delta_fH^@ (H_2O) =-285.8 kj mol^(-1) Delta_fH^@ (C_2H_2) = + 227.3 kj mol^(-1)

A person requires A kJ of energy daily. If the heat of combustion of cane sugar is -B kJ, then his daily consumption of sugar would be

If heat of combustion of methane is -800 kJ, then heat of combustion of 4 xx 10^-4 kg of methane is ________ .

If the standard enthalpy of formation of methanol is -238.9 kJ mol^(-1) then entropy change of the surroundings will be.

The enthalpy of formation of ammonia is -46.0 kJ mol^(-1) . The enthalpy for the reaction 2N_(2)(g)+6H_(2)(g)to4NH_(3)(g)

If the enthalpy of vaporisation of water is 186.5 kJ mol^(-1) , then entropy of its vaporisation will be

CHETANA PUBLICATION-Chemical Thermodynamics-EXERCISE
  1. For a gaseous reaction involving complete combustion of isobutane,

    Text Solution

    |

  2. The difference between DeltaH and DeltaU for the combustion of methane...

    Text Solution

    |

  3. Enthalpy of combustion of carbon is -395 kj.The amount of carbon neede...

    Text Solution

    |

  4. The heats of combustion of hydrogen, carbon monoxide and methane are -...

    Text Solution

    |

  5. The decreasing order of calorific values is

    Text Solution

    |

  6. The heat evolved in the combustion of glucose (C6H(12)O6) is given by ...

    Text Solution

    |

  7. A person requires A kJ of energy daily. If the heat of combustion of c...

    Text Solution

    |

  8. A person submits to a diet of 9,500 kj per day and expends energy in a...

    Text Solution

    |

  9. The bond dissodation energies of gaseous H2, Cl2 and HCl are 104, 58 a...

    Text Solution

    |

  10. Given thebond energiesof N=N, H-H,and N-H bonds are 945, 436 and 391 k...

    Text Solution

    |

  11. The bond energy of an O-H bond is109 kcal mol^(-1). When a mole of wat...

    Text Solution

    |

  12. The mutual heat of neutralisation of 40g NaOH and 60g CH3COOH will be

    Text Solution

    |

  13. When 10 ml NaOH is added to 10 ml HCl,the temperature rises by 3^@C. I...

    Text Solution

    |

  14. The heat of neutralization of a strong acid and a strong base is-60 kj...

    Text Solution

    |

  15. The enthalpy of neutralization of NaOH with HCl is-57.32 kJ while with...

    Text Solution

    |

  16. The work done during the process when 1 mol of gas is allowed to expan...

    Text Solution

    |

  17. Which of the following is an extensive property?

    Text Solution

    |

  18. The enthalpy of formation for all elements in their standard state is

    Text Solution

    |

  19. In which of the following entropy of the system decreases?

    Text Solution

    |

  20. Give the mathematical expression of first low of thermodynamics:

    Text Solution

    |