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triangleH for the reaction given below r...

`triangleH` for the reaction given below represents:`CO_2(g)+H_2(g)rarrCO(g)+H_2O ,triangleH=40` kJ

A

Enthalpy of formation

B

Enthalpy of combustion

C

Enthalpy of neutralisation

D

Enthalpy of reaction

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The correct Answer is:
D
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Calculate the enthalpy change( triangleH ) for the following reaction. 2C_2H_2(g)+5O_2(g)rarr4CO_2(g)+2H_2O Given : Average bond energies of varisous bonds C-H, CequivC , O=O, C=O, O-H are 414, 814, 499, 724, 640 kJ mol^- respectively.

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According to the equation, C_6H_6(l)+15/2O_2(g)rarr3H_2O(l)+6C_2(g) triangleH =-3264.4kJ/mol, the energy evolved when 7.8 g of benzene is burnt in air will be:

MBD PUBLICATION-THERMODYNAMICS-Question Bank
  1. Which is correct about the heat of combustion:

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  2. If C(s)+O2(g)rarrCO2(g), triangleH=X and CO(g)+1/2O2(g)rarrCO2(g), tri...

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  3. triangleH for the reaction given below represents:CO2(g)+H2(g)rarrCO(g...

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  4. Molar heat capacity of a gas at constant temperature and pressure is:

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  5. If 50 calorie are added to a system and system does work of 30 calorie...

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  6. If S^@ for H2, Cl2 and HCl are 0.13, 0.22 and 0.19 kJ K^-1 mol^-1 resp...

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  7. The enthalpy and entropy change for a chemical reaction are -2.5x 10^3...

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  8. One mole of an ideal at 300 K is expanded isothermaly from an initial ...

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  9. Latent heat of vaporisation of a liquid at 500K and 1 atm pressure is ...

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  10. Give the bond energies of N equiv N, H-H and N-H bonds as 945, 436 and...

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  11. If heat of formation of C Cl4 is 316 kcal mol^-1 the dissociation ene...

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  12. For the reaction, C2H4(g)+3O2(g)rarr2CO2(g)+2H2O(l), triangleU=-1414kJ...

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  13. H2(g)+I2(g)rarr2HI(g), triangleH=-12.40 kcals, Heat of formation of HI...

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

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  15. The heat of formation of CO(g) and CO 2 ​ (g) are ΔH=−110 and ΔH=−39...

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  16. If, S+O2rarrSO2, triangleH=-298.2 kJ (i)SO2+1/2O2rarrSO3, triangleH ...

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  17. H2(g)+Cl2(g)=2HCl(g), triangleH=-44.12 kcal The enthalpy of hydrogen ...

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  18. H2(g)+1/2O2(g)=H2O(l), triangleH298k=-68.32 kcal. Heat of vaporisati...

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  19. Standard heat of formation of CH4(g), CO2(g) and water at 25^@C are -1...

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  20. Molar heat capacity is given by:

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