Home
Class 12
CHEMISTRY
What amount of energy (kJ) is released i...

What amount of energy (kJ) is released in the combustion of 5.8 of `C_(4)H_(10)` (g)?
`2C_(4)H_(10)(g)+13O_(2)(g)to8CO_(2)(g)+10H_(2)O(1),`
`DeltaH^(@)=-5756kJ`

A

575.6

B

287.8

C

182

D

57.56

Text Solution

Verified by Experts

The correct Answer is:
B
`Q=5.8/58xx5756/2=287.8kJ`
Promotional Banner

Topper's Solved these Questions

  • THE SOLID STATE

    DISHA PUBLICATION|Exercise EXERCISE -2 : CONCEPT APPLICATOR|30 Videos

Similar Questions

Explore conceptually related problems

Use the following data to calculate the molar enthalpy of combustion of ethane , C_(2)H_(6) : 2C_(2)H_(2)(g)+5O_(2)(g)to4CO_(2)(g)+2H_(2)O(l), DeltaH=-2511KJ//mol C_(2)H_(2)(g)+2H_(2)(G)to C_(2)H^(6)(g), DeltaH=-311KJ//mol 2H_(2)(g)+O_(2)(g)to 2H_(2)O(l), DeltaH=-484KJ//mol

Calculate the heat of formation of n butane from the followinf data: a. 2C_(4)H_(10)(g) +13O_(2)(g) rarr 8CO_(2)(g) +10H_(2)O(l), DeltaH = - 5757.2 kJ b. C(s) +O_(2) (g)rarrCO_(2)(g), DeltaH =- 405.4 kJ c. 2H_(2)(g) +O_(2)(g) rarr 2H_(2)O(l), DeltaH =- 572.4 kJ

Calculate the standard enthalpy of formation of ethylene, C_(2)H_(4)(g) from the following thermochemical equation : C_(2)H_(4)(g) + 3O_(2)(g) to 2CO_(2)(g) + 2H_(2)O(g) Delta_(r)H^(@) = -1323 kJ Given the standard enthalpy of formation of CO_(2)(g) and H_(2)O(g) are - 393.5 and -249 kJ mol^(-1) respectively.

For the reaction C_(2)H_(4)(g)+3O_(2)(g) rarr 2CO_(2) (g) +2H_(2)O(l) , Delta E=-1415 kJ . The DeltaH at 27^(@)C is

Compounds with carbon-carbon double bond, such as ethylene, C_(2)H_(4) , add hydrogen in a reaction called hydrogenation. C_(2)H_(4)(g)+H_(2)(g) rarr C_(2)H_(6)(g) Calculate enthalpy change for the reaction, using the following combustion data C_(2)H_(4)(g) + 3O_(2)(g) rarr 2CO_(2)(g) + 2H_(2)O(g) , Delta_("comb")H^(Θ) = -1401 kJ mol^(-1) C_(2)H_(6)(g) + 7//2O_(2)(g)rarr 2CO_(2) (g) + 3H_(2)O(l) , Delta_("comb")H^(Θ) = -1550kJ H_(2)(g) + 1//2O_(2)(g) rarr H_(2)O(l) , Delta_("comb")H^(Θ) = -286.0 kJ mol^(-1)

DISHA PUBLICATION-THERMODYNAMICS-Exercise
  1. Stearic acid [CH(3)(CH(2))(16)CO(2)H] is a fatty acid the part of fat ...

    Text Solution

    |

  2. An imaginary reaction X rarr Y takes place in three steps X rarr A...

    Text Solution

    |

  3. What amount of energy (kJ) is released in the combustion of 5.8 of C(4...

    Text Solution

    |

  4. If S+O(2)toSO(2),DeltaH=-298.2 " kJ" " mole"^(-1) SO(2)+(1)/(2)O(2)t...

    Text Solution

    |

  5. If bond energies are denoted by epsilon, the enthalpy of the reaction:...

    Text Solution

    |

  6. Identify the correct statement regarding entropy

    Text Solution

    |

  7. The enthalpy change for a given reaction at 298 K is -x cal mol^(-1). ...

    Text Solution

    |

  8. DeltaS^(@) wil be highest for the reaction

    Text Solution

    |

  9. In which of the following entropy decreases?

    Text Solution

    |

  10. Given the following entropy values (in JK^(-1)"mol"^(-1)) at 298 K atm...

    Text Solution

    |

  11. Which one fo the following demonstrates a decreases in entropy?

    Text Solution

    |

  12. When 1.8 g of steam at the normal boiling point of water is converted ...

    Text Solution

    |

  13. An athelete in a gymansium room lifts a 50 kg mass through a vertical ...

    Text Solution

    |

  14. If for the raction at 300 K, 2Mg(g)+O(2)(g)to2MgO(s), Delta(r)H=-1202k...

    Text Solution

    |

  15. Which of the following pairs of a chemical reaction is certaion to res...

    Text Solution

    |

  16. The enthalpy and entropy change for the reaction Br(2)(l)+Cl(2)(g)to...

    Text Solution

    |

  17. DeltaG in Ag(2)Oto2Ag+1//2O(2) at a certain temperature is -10kJ"mol"^...

    Text Solution

    |

  18. Identify the correct statement for change of Gibbs energy for a system...

    Text Solution

    |

  19. A spontaneous reaction is impossible if

    Text Solution

    |

  20. Pick out the wrong statement

    Text Solution

    |