Home
Class 11
CHEMISTRY
If the heats of formation of Al2O3 and F...

If the heats of formation of `Al_2O_3` and `Fe_2O_3` are -400 K.Cal and -190 K.Cal respectively, the heat of the following reaction is
`2Al + Fe_2O_3 rarr 2Fe + Al_2O_3`

A

`210 K.Cal `

B

`590 K. Cal`

C

`- 590 K.Cal `

D

`- 210 K.Cal `

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL THERMODYNAMICS

    AAKASH SERIES|Exercise OBJECTIVE EXERCISE - 2 (ENTROPY AND GIBBS ENERGY)|15 Videos

  • CHEMICAL THERMODYANMICS

    AAKASH SERIES|Exercise Questions For Descriptive Answers|28 Videos

  • ELECTRON MIGRATION EFFECTS

    AAKASH SERIES|Exercise QUESTIONS FOR DESCRIPTIVE ANSWERS|10 Videos

Similar Questions

Explore conceptually related problems

The heats of formation of CO_2, H_2O and C_2H_4 are -94.05, -68.2 and 12.6 K.Cals/ mole, respectively. The heat of combustion of ethylene is

Balance the following equations. 4) Fe+O_(2)rarr Fe_(2)O_(3)

Balance the following equations Fe + H_2O to Fe_3O_4 + H_2

Balance the follwowing equations. 1) Al(OH)_(3)rarr Al_(2)O_(3)+H_(2)O

The Nature of Al_2 O_3 is

The n-factor of FeS_2 during its oxidation as Fes_(2) rarr Fe_(2)O_3+SO_2

Complete the following reactions: (i) C_(2)H_(4)+O_(2) to (ii) 4Al+3O_(2) to

AAKASH SERIES-CHEMICAL THERMODYNAMICS-PRACTICE EXERCISE
  1. BOH((aq)) + H((aq))^(+) rarr B((aq))^(+) + H2O, DeltaH = -48 KJ.Heat o...

    Text Solution

    |

  2. The heat of ionisation of weak acid and a weak base are .x. and .y. k....

    Text Solution

    |

  3. If the heats of formation of Al2O3 and Fe2O3 are -400 K.Cal and -190 K...

    Text Solution

    |

  4. When 1 litre of IM HCl is mixed with 1 litre of 1M NaOH, the rise in t...

    Text Solution

    |

  5. Standard molar enthalpy is lowest for

    Text Solution

    |

  6. Lattice dissociation energy and hydration energy of sodium chloride ar...

    Text Solution

    |

  7. Example of endothermic product is

    Text Solution

    |

  8. If (I)C + O2 rarr CO2 , Q1 (II) C+1//2 O2 rarr CO , Q2 (III) CO + ...

    Text Solution

    |

  9. The enthalpy of formation of N2O((g)) and NO((g)) are 82.0 KJ and 90 K...

    Text Solution

    |

  10. The heats of formation of CO2, H2O and C2H4 are -94.05, -68.2 and 12.6...

    Text Solution

    |

  11. Given that C + O2 rarr CO(2) , DeltaH^@ = -xkJ 2CO + O2 rarr 2CO2 , ...

    Text Solution

    |

  12. The enthalpy of formation of ammonia is -46.0 KJ mol^(-1). The enthalp...

    Text Solution

    |

  13. Which of the following bond has highest enthalpy

    Text Solution

    |

  14. 2C((s))  + 1/2O(2(gg) rarr CO(2(g)) , DeltaH = -787 KJ H(2(g)) + 1/2...

    Text Solution

    |

  15. Heats of combustion of C2H4, H2 and C2H6 are -1409 K.J, -285 K.J and -...

    Text Solution

    |

  16. The enthalpy of combustion of cyclohexane cyclohexene and H2 are respe...

    Text Solution

    |

  17. Given that CH3CHO + 5/2O2 rarr 2CO2 + 2H2O, DeltaH = -1168 KJ//"mole...

    Text Solution

    |

  18. The enthalpy of vapourisation of a liquid is 30 KJ mol^(-1) and entrop...

    Text Solution

    |

  19. H(2(g)) rarr 2H((g)) , DeltaH = 400 KJ , then DeltaS("system") at 2000...

    Text Solution

    |

  20. Show that A ∪ B = A ∩ B implies A = B

    Text Solution

    |