Home
Class 11
CHEMISTRY
Which are exothrmic processes? (p) Comb...

Which are exothrmic processes?
(p) Combustion of ethane
(Q)Dehyration of barium choride dihdrate

A

Ponly

B

Qonly

C

Both p and Q

D

Neither P nor Q

Text Solution

Verified by Experts

The correct Answer is:
a
Promotional Banner

Topper's Solved these Questions

  • SALT ANALYSIS

    GRB PUBLICATION|Exercise Subjective Type|69 Videos

Similar Questions

Explore conceptually related problems

Ethane is subjected to combustion process. During the combustion the hybrid state of carbon changes from:

Which of the following is/are pseudo solids? (P) KCl (Q) Barium chloride dihydrate (C ) Cake left after distillation of cool tar:

Which of these coversios has a poitive DeltaS^(@) ? (p)combustion of charcoal (Q) condensation of Br_(2)(g) (R ) precipitation ofAgCl(s)

Combustion of sucrose is used by aerobic oranisms for providing energy for the life sustaining processes. If all the capturing of energy from reaction is done through electrical process (non P-V work), then calculate maximum available energy which can be captured by combustion of 34.2g of sucrose. Given, DeltaH_("combustion")("surrose") =-6000KJ mol^(-1) DeltaS_("combustion")=180J//K-mol and body temperatuire is 300K

Combustion of sucrose is used by aerobic organisms for providing energy for the life sustaining process. If all the capturing of energy from the reaction is done through electrical process (non P-V work), then calculate, maximum available energy which can be captured by combustion of 34.2 g of sucrose : (Given : DeltaH_("combustion")("sucrose")=-6000kJmol^(-1) DeltaS_("combustion")=180j//K-mol and bodyntemperature is 300 K)

DeltaH for combustion of ethane and ethyne are -341.1 and -310.0kcal respectively. Which gas is better for welding purpose and why ?

Assertion (A): For a particular reaction, heat of combustion at constant pressure (q_(P)) is always greater than that at constant volume (q_(V)) . Reason (R ) : Combustion reactions are invariably accomplished by increase in number of moles.

GRB PUBLICATION-THERMODYNAMICS-All Questions
  1. Rank the enthalpy of fusion , sublimation and vaporization for water :

    Text Solution

    |

  2. The stande enthalpy of formation for NH(3)(g)is -46.1KJxxmol^(-1) .Cal...

    Text Solution

    |

  3. Which are exothrmic processes? (p) Combustion of ethane (Q)Dehyratio...

    Text Solution

    |

  4. Which sets of chemicals , when mixed , produce the observation (s) lis...

    Text Solution

    |

  5. The vapour pressure of phoshorus trichoride is100 mm Hg at 21.0^(@) an...

    Text Solution

    |

  6. Estimate the enthalpy of combustion of methane in KJ .mol^(-1) CH(4)...

    Text Solution

    |

  7. Which Statement is always true for an exothermic reaction ?

    Text Solution

    |

  8. For which reaction is DeltaH(rxn)^(@) equal to DeltaH(f)^(@) for CUSO...

    Text Solution

    |

  9. What is the value of DeltaH^(@) (inKJ) for this reaction ?ltbr gt ...

    Text Solution

    |

  10. The heat of a reaction is measured in a bomb calorimeter . This heat i...

    Text Solution

    |

  11. NO(g)to(1)/(2)N(2)(g)+(1)/(2)O(2)(g),DeltaH(1)^(@) 2NO(g)toN(2)O(g)+...

    Text Solution

    |

  12. When 2.74 g of Ba(s) reacts with O(2)(g) at 298K and 1 atm to from Ba(...

    Text Solution

    |

  13. Determine DeltaH(rxn) for the reaction in KJ .mol^(-1) 2NH(3)(g)+(5)...

    Text Solution

    |

  14. Calculate Delta E when one mole of liuid is vaporized at its boiling p...

    Text Solution

    |

  15. Use the following data to calculate the molar enthalpy of combustion o...

    Text Solution

    |

  16. Determine the enthalpy change for the reaction of 5.00 g Fe(2)O(3)with...

    Text Solution

    |

  17. The energies of the bonds broken in a certain eaction arae greater th...

    Text Solution

    |

  18. What is the value of Delta s^(@) for the reaction below? Fe(2)O(3)(...

    Text Solution

    |

  19. Statement-1: Adiabatic free expansion of any subatance in a cosed syst...

    Text Solution

    |

  20. Statement-1: The heat absorbed during the adiabatic expansion of an a ...

    Text Solution

    |