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2 C6H6(l)+15O2=12 CO2+6H2O(l) 2 C6H6(g)...

`2 C_6H_6(l)+15O_2=12 CO_2+6H_2O(l)`
`2 C_6H_6(g)+15O_2=12CO_2+6H_2O(l)` for the two reactions `DeltaH` will be

A

different

B

same

C

almost equal

D

none of these

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The correct Answer is:
A
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Calculate the standard enthalpy of reaction at 25^@C temperature for the following reaction : C_6H_6(I) + frac 15/2 O_2 (g) rarr 6CO_2(g)+3H_2O(I) . Given: The standard enthalpy of formation of C_6H_6(I) , .CO_2(g) and H_2O(I) are 49.0kJ mol^-1 , -393.5 kJ mol^-1 and -285.8 kJ mol^-1 respectively.

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Calculate the enthalpy change for the reaction: C_(2)H_(4)(g)+3O_(2)(g) to 2CO_(2)(g)+2H_(2)O(l) Given: C_(2)H_(6)(g)+(7)/(2)O_(2)(g) to 2CO_(2)(g)+3H_(2)O(l),DeltaH^(0)=-1562.0kJ H_(2)(g)+(1)/(2)O_(2)(g)toH_(2)O(l),DeltaH^(0)=-286.0kJ C_(2)H_(4)(g)+H_(2)(g)toC_(2)H_(6)(g),DeltaH^(0)=-32.0kJ

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PATHFINDER-THERMODYNAMICS-QUESTION BANK
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  2. At 298K in a constant volume calorimeter 0.01 mole of X was detonated ...

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  3. 2 C6H6(l)+15O2=12 CO2+6H2O(l) 2 C6H6(g)+15O2=12CO2+6H2O(l) for the t...

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  4. Which of the following is correct one:

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  5. Which of the following is incorrect one:

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  6. In a reversible adiabatic change the entropy change is

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  7. If H^(+)+OH^(-)rarr H2O+13.7k cal then heat of complete neutralisation...

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  8. Which of the following is an intensive property?

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  9. The unit of entropy is

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  10. Which of the following has highest entropy?

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  11. For the reaction between CO2 and graphite CO2(g)+C(s)rarr 2CO(g), Delt...

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  12. H2O(l)rarr H2O(g) ,DeltaH=+43.7 KJ H2O(s) rarr H2O(l) ,Delta h=+6.05...

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  13. The enthalpy of formation of ammonia is x KJ mol^(-1). The enthalpy of...

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  14. In which of the following neutralization the heat of neutralization wi...

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  15. Which of the following units represents largest amount of energy?

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  16. The value of Delta H for the process NH4OH(aq) rarr NH4^(+)+Cl^(-) is

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  17. The heats of combustion of methane,carbon and hydrogen are a,b and c c...

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