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If C(s)+O2(g)rarrCO2(g), triangleH=X and...

If `C(s)+O_2(g)rarrCO_2(g)`,` triangleH=X` and `CO(g)+1/2O_2(g)rarrCO_2(g)`, `triangleH=Y` then the heat of formation of CO is

A

`C_(graphite)+O_2(g)=CO_2(g)`

B

`CH_4(g)+2O_2(g)=CO_2(g)+2H_2O(l)`

C

`CO(g)+1/2O_2(g)=CO(g)`

D

`C_6H_6(l)+7 1/2O_2(g)=6CO_2(g)+3H_2O(l)`

Text Solution

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The correct Answer is:
A
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MBD PUBLICATION-THERMODYNAMICS-Question Bank
  1. Standard molar enthalpy of formation of CO2 is equal to:

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  2. Which is correct about the heat of combustion:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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