Home
Class 11
CHEMISTRY
It is observed that an combustion of 5.6...

It is observed that an combustion of 5.6 g of but-1ene(g) 70 kcal of heat is liberated in a closed rigid vessel at 300 K. What could be a possible value of `abs(DeltaH_(combustion)^(@))` of gaseous cyclone propane [Take : R=2 cal`//`K mole]?

A

490 kcal

B

491.5 kcal

C

49 kcal

D

500 kcal

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • SALT ANALYSIS

    GRB PUBLICATION|Exercise Subjective Type|69 Videos

Similar Questions

Explore conceptually related problems

It is observed that on combustion of 4.2 g of gaseous propene in a closed rigid vessel 49 kcal of heat was liberated at 300 K. What could be a possible value of abs(DeltaH^(@) "combustion") of gaseous cyclone propane[Take : R=2 cal // K mole]?

In the combusion of 2g benzene, 2.5 kcal heat was evolved. What is the heat of combustion?

If, combustion of 4g of CH_(4) liberates 2.5kcal of heat, the heat of combustion of CH_(4) is :

1 mole of CaCO_(3) is heated in a closed container fitted with a frictionless movable piston at 1 atm, 300 K. Calculate the magnitude of work obtained (in cal) [Use : R=2 "cal"//"K-mole"]

14 g of nitrogen is contained in a vessel at 300 K. How much heat should be taken out of the gas to half the rms speed cf its molecules ? R=2 cal/mol K:

The heat of combustion of H_(2)(g) at constant pressure and 300k is -280kJ mol^(-1) . What will be the heat of combustion at constant volume and at 300K ?

The heat of combustion of methane gas is -212" kcal mol"^(-1) Calculate Delta U" at "300 K," if "R=2" cal "K^(-1)mol^(-1) .

GRB PUBLICATION-THERMODYNAMICS-All Questions
  1. Calculate bond energy of X-X bond from the following data. DeltaH...

    Text Solution

    |

  2. The combustion of 1.22 g benzoic acid (M=122) in a bomb calorimeter at...

    Text Solution

    |

  3. It is observed that an combustion of 5.6 g of but-1ene(g) 70 kcal of h...

    Text Solution

    |

  4. It is observed that on combustion of 4.2 g of gaseous propene in a clo...

    Text Solution

    |

  5. Standard enthalpy of formation of N(2)O(5) is -100 kcal//mol and stand...

    Text Solution

    |

  6. The bond energy of C=O if DeltaH(f)^(@)(CO(2))=390 kJ, DeltaH("sublima...

    Text Solution

    |

  7. What will be the maximum amount of heat realeased when 321 g of a mixu...

    Text Solution

    |

  8. Which of the followig substances willl have non-zero standard enthalpy...

    Text Solution

    |

  9. What will be the value of resonance energy of N(2)O if : DeltaH(BDE)...

    Text Solution

    |

  10. For the reaction, 2NH(3)(g)toN(2)(g)+3H(2)(g) Identify the statement...

    Text Solution

    |

  11. Identify the option which is correct :

    Text Solution

    |

  12. Calculate DeltaH when 2 moles of solid benzoic acid undergo complete c...

    Text Solution

    |

  13. Two solids A and B having molar masses 200 and 300 react to form anoth...

    Text Solution

    |

  14. A(g)to2B(g),DeltaH^(@)=10 kJ//mole at 300 K, C(P,A)=20 J//Kmole ...

    Text Solution

    |

  15. Calculate DeltaH("combustion"^(@) of C("graphite") if DeltaH(f)^(@) of...

    Text Solution

    |

  16. The bond enthalpies of C-C,C=C and C=C bonds are 348, 610 and 835 kj//...

    Text Solution

    |

  17. Given the following data : Determine at what temperature the foll...

    Text Solution

    |

  18. If DeltaH(f)^(@) for Ag^(+) (infinately diluted), NO(3)^(-) (infinity ...

    Text Solution

    |

  19. IN Haber's process of manufacturing of ammonia : N(2)(g)+3H(2)(g)to2...

    Text Solution

    |

  20. Which of the reaction defines molar DeltaH(f)^(@) ?

    Text Solution

    |