Home
Class 11
CHEMISTRY
How much heat is absorbed in complete re...

How much heat is absorbed in complete reaction of 3.00 g of `SiO_2` with excess of carbon in the reaction given below?
`SiO_2(g)+3C(s)rarrSiC(s)+2CO(g), DeltaH=624.7 kJ`

A

`1.33xx10^4 kJ`

B

`1.13xx10^5 kJ`

C

5.06 kJ

D

31.2 kJ

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • STATES OF MATTER (GASES & LIQUIDS)

    PATHFINDER|Exercise QUESTION BANK|280 Videos

Similar Questions

Explore conceptually related problems

Write the expression of K_(c) for the reactions: NH_(4)NO_(3)(s)hArrN_(2)O(g)+2H_(2)O(g)

How much KClO_3 should be heated for the production of oxygen to burn out 6g of carbon completely?

Mention two factors for which the yields of the products in the given reaction increases. CO(g)+H_(2)O(g) hArr CO_(2)(g) +H_(2)(g)- heat.

Among the reactions given the oxidant and the reductant in each case: Fe_(2)O_(3)(s)+3CO(g)to2Fe(s)+3CO_(2)(g)

Justify the following reactions are redox reactions : CuO(s)+H_(2)(g)toCu(s)+H_(2)O(g)

For the reaction CaCO_3(s)iffCaO(s)+CO_2(g) which one is correct.

Justify the following reactions are redox reactions : Fe2O_(3)(s) +3CO(g)to2Fe(s)+3CO_(2)(g)

Write the anode and cathode reactions for the given cell reactions. Ag(s)+(1)/(2)Cl_(2)(g)rarrAgCl(s)

Explain what will happen if the reaction below is treated in open & closed Container respectively. 3 Fe(S) + 4 H_2O (g) f Fe_3O_4 (S) + 4H_2 (g)

Which one of the given reactions indicates the formation reaction of the compound produced in the reaction? (i) S (moochlinic,s) +O_(3)(g)toSO_(3)(g) (ii) C (graphite, s) +2H_(2)(g)toCH_(4)(g) (iii) N_(2)(g) +O_(2)(g) to 2NO(g) .

PATHFINDER-THERMODYNAMICS-QUESTION BANK
  1. If w1, w2, w3 and w4 are work done in isothermalm, adiabatic, isobaric...

    Text Solution

    |

  2. Calculate DeltaH for this reaction, H2(g)+O2(g) rarr H2O2(g) B(H-H)=...

    Text Solution

    |

  3. How much heat is absorbed in complete reaction of 3.00 g of SiO2 with ...

    Text Solution

    |

  4. Standard enthalpies of formation of O3, CO2, NH3 and HI are 142.2, -39...

    Text Solution

    |

  5. What should be the amount of heat released when an aqueous solution co...

    Text Solution

    |

  6. The difference between the heats of reaction at constant pressure and ...

    Text Solution

    |

  7. The value of DeltaH(comb) of four gases C2H6, C2H4, C2H10, CH4 are giv...

    Text Solution

    |

  8. A solution of 500 mL of 0.2 M KOH and 500 mL of 0.2 M HCl are mixed an...

    Text Solution

    |

  9. The standard heat of formation of NO2(g) and N2O4(g) are 8.0 and 2.0 k...

    Text Solution

    |

  10. Given enthalpy of formation of CO2(g) and CaO(s) are -94.0 kJ and -152...

    Text Solution

    |

  11. H2(g)rarr2H(g), DeltaH=104.2 kcal. The bond energy of H-H bond is

    Text Solution

    |

  12. Which compound will absorb the maximum amount of heat when dissolved i...

    Text Solution

    |

  13. Heat evolved in the reaction, H2+Cl2rarr2HCl is 182 kJ. Bond energies ...

    Text Solution

    |

  14. For which change DeltaH ne DeltaU?

    Text Solution

    |

  15. The enthalpies of combustion of carbon and carbon monoxide are -393.5 ...

    Text Solution

    |

  16. A particular reaction has DeltaH =+250 kJmol^-1, which of the followin...

    Text Solution

    |

  17. Combustion of octand takes place in an automobile engine. The homogene...

    Text Solution

    |

  18. Estimate the minimum temperature above which the raction will be spont...

    Text Solution

    |

  19. DeltaH and DeltaS for a reaction are +30.558 kJmol^-1 and 0.066 kJ K^-...

    Text Solution

    |

  20. For which of these processes is the value of DeltaS negative I. Sugar ...

    Text Solution

    |