Home
Class 11
CHEMISTRY
Calculate the heat of formation of anhyd...

Calculate the heat of formation of anhydrous `Al_2Cl_6` from the following data:
(i) `2Al + 6HCl (aq) to Al_2Cl_6 (aq) + 3H_2(g), DeltaH = - 239.76 kcal `
(ii) `Al_2Cl_6 (s) + aq to Al_2Cl_6(aq), DeltaH = - 153.69 kcal `
(iii) `H_2(g) + Cl_2(g) to 2HCl (g) , DeltaH = -44kcal`
(iv) `HCl (g) + aq to HCl (aq), DeltaH = - 17.31 kcal`

Promotional Banner

Topper's Solved these Questions

  • SELF ASSESSMENT PAPER 05

    ICSE|Exercise QUESTIONS |37 Videos

  • SELF ASSESSMENT PAPER 2

    ICSE|Exercise Questions|62 Videos

Similar Questions

Explore conceptually related problems

Calculate the heat of formation of glucose from the following data, C(s) + O_2(g) to CO_2(g) , DeltaH =-395.0 kJ H_2(g) + 1/2O_2(g) to H_2O (l) , DeltaH = - 269.4 kJ C_6H_12O_6 (s) + 6O_2(g) to 6CO_2(g) + 6H_2O(l), DeltaH =- 2900 kJ

The heat of formation of PCl_(5)(s) from the following data will be : 2P(s)+3Cl_(2)(g)to 2PCl_(3)(l), Delta H = - 151.8 Kcal and PCl_(3)(l)+Cl_(2)(g)to PCl_(5)(s) , Delta H =- 32.8 Kcal

In the reactions H_2(g) +Cl_2 ( g) hArr 2HCl (g) .

For the reaction, Zn(s) + 2HCl (aq) to ZnCl _2(aq) + H_2(g) , DeltaH is equal to DeltaE .

Calculate the heat of formation of methane in kcalmol^(-1) using the following thermo chemical reactions C(s)+O_(2)toCO_(2)(g) , DeltaH=-94.2 kcal mol^(-1) H_(2)(g)+1/2O_(2)(g)toH_(2)O(l) , DeltaH=-68.3 kcal mol^(-1) CH_(4)(g)+2O_(2)(g)toCO_(2)(g)+2H_(2)O(l) , DeltaH=-210.8 kcal mol^(-1)

In the reaction 2Al(s)+6HCl(aq)to6Cl^(-)(aq)+3H_2

Calculate heat of formation of KOH(s) using the following equations K(s) +H_(2)O(l) +aq rarr KOH(aq)+1//2 H_(2)(g),DeltaH =- 48.0 kcal …(i) H_(2)(g) +1//2O_(2)(g) rarr H_(2)O(l),DeltaH =- 68.4 kcal …(ii) KOH(s) +(aq) rarr KOH(aq),DeltaH =- 14.0 kcal ....(iii)

Calculate heat of formation of KOH(s) using the following equations K(s) +H_(2)O(l) +aq rarr KOH(aq)+1//2 H_(2)O(g),DeltaH =- 48.0 kcal …(i) H_(2)(g) +2O_(2)(g) rarr H_(2)O(l),DeltaH =- 68.4 kcal …(ii) KOH(s) +(aq) rarr KOH(aq),DeltaH =- 14.0 kcal ....(iii)

Sort out the exothermic and endothermic reactions among the following: (i) C (s) + 2H_2(g) to CH_4(g) , DeltaH = - 17.89 cal (ii) CO(g) + 1/2O_2(g) to CO_2(g) = +284.5 kJ (iii) 2HCl (g) to 2H(g) + 2Cl(g), DeltaH = + 857 kJ (iv) Cl_2(g) + 242kJ to 2Cl(g)

Find the heat of formation of ethyl alcohol for following data C(s) +O_(2)(g) rarr CO_(2)(g) DeltaH =- 94 kcal H_(2)(g) +1//2O_(2)(g) rarr H_(2)O(l), DeltaH =- 68 kcal C_(2)H_(5)OH(l)+3O_(2)(g) rarr 2CO_(2)(g) +3H_(2)O(l) DeltaH =- 327 kcal

ICSE-SELF ASSESSMENT PAPER 1-Questions
  1. 1470 cm^3 of a gas is collected over water at 303 K and 74.4 cm of Hg....

    Text Solution

    |

  2. State any three limitations of Bohr.s model?

    Text Solution

    |

  3. Calculate the heat of formation of anhydrous Al2Cl6 from the following...

    Text Solution

    |

  4. Calculate the heat of formation of anhydrous Al2Cl6 from the following...

    Text Solution

    |

  5. Calculate the heat of formation of anhydrous Al2Cl6 from the following...

    Text Solution

    |

  6. Calculate the heat of formation of anhydrous Al2Cl6 from the following...

    Text Solution

    |

  7. What do you understand by a spontaneous process ? Give two examples

    Text Solution

    |

  8. Define Gibb.s free energy and free energy change.

    Text Solution

    |

  9. What are green chemicals?

    Text Solution

    |

  10. What do you understand by COD?

    Text Solution

    |

  11. Name three green house gases.

    Text Solution

    |

  12. What are Grignard reagents and how are they prepared ? What happens wh...

    Text Solution

    |

  13. Compare atomic orbitals with molecular orbitals.

    Text Solution

    |

  14. Balance the following equation in basic medium. Cr(OH)(3)+IO(3)^(-)t...

    Text Solution

    |

  15. Calculate the oxidation number of the underlined atom in the following...

    Text Solution

    |

  16. Calculate the oxidation number of the underlined atom in the following...

    Text Solution

    |

  17. Calculate the oxidation number of the underlined atom in the following...

    Text Solution

    |

  18. Calculate the oxidation number of the underlined atom in the following...

    Text Solution

    |

  19. The compound AgF(2) is unstable compound. However, if formed, the comp...

    Text Solution

    |

  20. Balance the following equations. C(2)H(5)OH+l(2)+OH^(-)toCHl(3)+HCOO...

    Text Solution

    |