Home
Class 12
CHEMISTRY
The heats of combustion of yellow P and ...

The heats of combustion of yellow P and red P are `-9.91kJ` and `-8.78 kJ` respectively. The heat of transition of yellow to red phosphorus is

A

`-18.69 kJ`

B

`+1.313 kJ`

C

`+18.69 kJ`

D

`-1.13 kJ`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS & THERMOCHEMISTRY

    VMC MODULES ENGLISH|Exercise Enable|49 Videos

  • THERMODYNAMICS & THERMOCHEMISTRY

    VMC MODULES ENGLISH|Exercise Efficient|48 Videos

  • THERMODYNAMICS

    VMC MODULES ENGLISH|Exercise JEE ADVANCED (ARCHIVE)|44 Videos

Similar Questions

Explore conceptually related problems

The heat of combustion of yellow phoshphorus and red phosphorus are -9.91KJmol^(-1) and -8.78 KJ/mol respectively. The heat of transition from yellow phosphrous to red phosphorus is

The heat of combustion of carbon and monoxide are -394 and -285 KJ mol^(-1) respectively. The heat of formation of CO in KJ mol^(-1) is :-

The heats of combustion of carbon and carbon monoxide are −393.5 and −283.5 kJ mol ^(−1) respectively. The heat of formation (in kJ) of carbon monoxide per mole is:

The heat of combustion of C, S and CS_(2) are -393.3kJ, -293.7kJ and -1108.76kJ. What will be the heat of formation of CS_(2) ?

Ethylene on combustion gives carbon dioxide and water. Its heat of combustion is 1410.0 kJ mol^(-1) . If the heat of formation of CO_(2) and H_(2)O are 393.3 kJ and 286.2 kJ , respectively. Calculate the heat of formation of ethylene.

Ethylene on combustion gives carbon dioxide and water. Its heat of combustion is 1410.0 kJ mol^(-1) . If the heat of formation of CO_(2) and H_(2)O are 393.3 kJ and 286.2 kJ , respectively. Calculate the heat of formation of ethylene.

The heats of combustion of carbon,hydrogen and acetylene are -394kJ, -286kJ and -1301kJ respectively. Calculate heat of formation of C_(2)H_(2)

The heats of combustion of C_(2)H_(4), C_(2)H_(6) and H_(2) gases are -1409.5 KJ, -1558.3 KJ and -285.6 KJ respectively. The heat of hydrogenation of ethene is

The heats of combustion of C_(2)H_(4(g)), C_(2)H_(6(g)) and H_(2(g)) are -1409.4,-1558.3 and -285.6 kJ respectively. Calculate heat of hydrogenation of ethylene.

VMC MODULES ENGLISH-THERMODYNAMICS & THERMOCHEMISTRY-Impeccable
  1. The heats of combustion of yellow P and red P are -9.91kJ and -8.78 kJ...

    Text Solution

    |

  2. Calculate the work done when 1 mol of an ideal gas is compressed rever...

    Text Solution

    |

  3. Consider the following reactions: I. C(s) + 1/2 O(2)(g) rarr CO(g),"...

    Text Solution

    |

  4. An endothermic reaction has a positive internal energy change triangle...

    Text Solution

    |

  5. The heat of atomisation of PH3(g) and P2H4(g) are 953 kJ mol^(-1) and ...

    Text Solution

    |

  6. Given that Deltah(f)(H)=218 kJ//mol. Express the H-H bond energy in K ...

    Text Solution

    |

  7. The heat change for the following reaction at 298 K and constant press...

    Text Solution

    |

  8. Entropy changesh for the process, H(2)O(l) to H(2)O at normal pressure...

    Text Solution

    |

  9. A process is called reversible when

    Text Solution

    |

  10. The incorrect statemetns amgong the following is

    Text Solution

    |

  11. Under which of the following sets of conditions, triangleG is always n...

    Text Solution

    |

  12. The second law of thermodynamic states that in a cyclic process,

    Text Solution

    |

  13. When 400 mL of 0.2 N solution ofa weak acid is neutralized by a dilute...

    Text Solution

    |

  14. Equal volumes of molar hydrochloric acid and sulphuric acid are neutra...

    Text Solution

    |

  15. for an endothermic reaction , energy of activation is E(alpha) an...

    Text Solution

    |

  16. Which equation is correct for adiabatic process ?

    Text Solution

    |

  17. For a given reaction, DeltaH = 35.5 kJ mol^(-1) and Delta S = 83.6 JK...

    Text Solution

    |

  18. If W is the amount of work done by the system and q is the amount of h...

    Text Solution

    |

  19. Thermodynamically the most stable form of carbon is (a) diamond , (b...

    Text Solution

    |

  20. If 1 mole of an ideal gas expands isothermally at 37^(@)C from 15 litr...

    Text Solution

    |

  21. The pressure of a gas is 100 k Pa. if it is compressed from 1 m^(3) t...

    Text Solution

    |