Home
Class 11
CHEMISTRY
2 g of an organic compound is burnt comp...

2 g of an organic compound is burnt completely in a bomb calorimeter at 289 K. The final temperature of calorimeter was found to be 298.5 K. Calorimeter constant is `400JK^-1` and molar mass of the compound is 50 g. What is the enthalpy of combustion per mol of the compound in kJ unit?

Text Solution

Verified by Experts

[5]
Promotional Banner

Topper's Solved these Questions

  • STATES OF MATTER (GASES & LIQUIDS)

    PATHFINDER|Exercise QUESTION BANK|280 Videos

Similar Questions

Explore conceptually related problems

When 1.0g of a compound (molecular weight=28) is burnt in a bomb calorimeter, the temperature of the calorimeter rises from 25^(@)C to 25.45^(@)C . Calculate the heat that evolves when 1 mol of this compound is completely burnt (C_(cal)=2.5kJ*K^(-1)) .

In a constant volume calorimeter, 3.5g of a gas with molecular mass 28 was burnt in excess oxygen at 298.0 K. the temperature of the calorimeter was found to increase from 298.0K to 298.45K, due to the combustion process. Given, that the heat capacity of the calorimeter is 2.5kJ*K^(-1) , what will be the value of enthalpy of combustion of the gas?

When 1 g of graphite is completely burnt in a bomb calorimeter, the temperature of the bomb and water rises from 25^(@)C to 30.5^(@)C . If the heat capacity of the calorimeter is 5.96kJ*""^(@)C^(-1) , then the heat of combustion per mole of graphite at constant volume is-

When a gas (molar mass =28g*mol^(-1) ) of mass 3.5 is burnt completely in presence of excess oxygen in a bomb calorimeter, the temperature of the calorimeter increases from 298 K to 298.45 K. the heat of combustion at constant volume for the gas (Given: heat capacity of the calorimeter =2.5kJ*K^(-1) ) is-

An organic compound crystallises in an orthorhombic cell in the ratio of 2 : 1. The dimensions of cell are 12.05, 15.05 and 2.69Å and density is 1.419g//cm^(3) . Molar mass of the compound is-

At 25^(@)C the heat of combustion at constant volume of 1 mol of a compound is 5150 kJ. The temperature of a bomb calorimeter rises from 25^(@)C to 30.5^(@)C when a certain amount of the compound is burnt in it. If the heat capacity of the calorimeter is 9.76 kJ*K^(-1) then how much of the compound was taken for combustion. [Molar mass of the substance=128]

The heat liberated when 1.89 g of benzoic acid is burnt in a bomb calorimeter at 25^@C increase the temperature of 18.94 kg of water by 0.632^@C . If the specific heat of water at 25^@C is 0.998 cal/g-deg, the value of the heat of combustion of benzoic acid is

A liquid kept in a calorimeter cools down from 50^(@)C to 40^(@)C in 2 minutes, and an equal volume of water in that calorimeter takes 5 minutes to cool down through the same range of temperature. If the mass of the water is 100 g and that of the liquid is 85 g. then calculate the specific heat of the liquid. Water equivalent of the calorimeter = 10 g.

PATHFINDER-THERMODYNAMICS-QUESTION BANK
  1. Match Column-I with Column-II

    Text Solution

    |

  2. Match Column-I with Column-II

    Text Solution

    |

  3. 2 g of an organic compound is burnt completely in a bomb calorimeter a...

    Text Solution

    |

  4. When a current of x ampere from a 20.9 V battery is used for 4.0 s to ...

    Text Solution

    |

  5. When 5.0 ml of 0.1 M HCI solution is mixed with 5.0 ml of a 0.1 M NaOH...

    Text Solution

    |

  6. Calculate the work done by the reaction (in L. atm) Fe(s)+H2SO4(aq)rar...

    Text Solution

    |

  7. Calculate entropy change when 10 moles of an ideal gas expands reversi...

    Text Solution

    |

  8. A gas present in a cylinder filled with a frictionless piston expands ...

    Text Solution

    |

  9. Work done in expansion of an ideal gas from 4 litre to 6 litre against...

    Text Solution

    |

  10. Calculate the maximum work done in expanding 16 g of oxygen at 300K an...

    Text Solution

    |

  11. One mole of an ideal monoatomic gas is heated at constant pressure fro...

    Text Solution

    |

  12. One mole of an ideal gas is heated at constant pressure from 0 o C t...

    Text Solution

    |

  13. Calculate DeltaH^@ for 2Al+Fe2O3rarr2Fe+Al2O3 given that standard heat...

    Text Solution

    |

  14. The heat liberated on complete combustion of 7.8 g benzene is 327 kJ. ...

    Text Solution

    |

  15. Calculate heat of combustion of benzene at constant pressure at 27^@C....

    Text Solution

    |

  16. The enthalpy change involved in the oxidation of glucose is -2880 kJ m...

    Text Solution

    |

  17. The heat of formation of ethane is -20.3 kcal. Calculate the bond ener...

    Text Solution

    |

  18. Calculate the resonance energy of N2O from the following data Delta1 H...

    Text Solution

    |

  19. The following reaction is performed at 298 K. 2NO(g) + O2(g) rarr 2NO...

    Text Solution

    |

  20. The standard Gibbs energy change at 300 K for the reaction 2A iff B+C ...

    Text Solution

    |