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Bond enthalpies of H-H, Cl-Cl and H-Cl b...

Bond enthalpies of H-H, Cl-Cl and H-Cl bonds are `434 kj mol^(-1)`, `242 kj mol^(-1)` and `431 kj mol^(-1)`, respectively. Enthalpy of formation of HCl is

A

A. `245 kJ mol^(-1)`

B

B. `-93 kJ mol^(-1)`

C

C. `-245 kJ mol^(-1)`

D

D. `93 kJ mol^(-1)`

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CHETANA PUBLICATION-Chemical Thermodynamics-EXERCISE
  1. If the standard enthalpy of formation of methanol is -238.9 kJ mol^(-1...

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  2. For vaporization of water at 1bar,DeltaH=40.63kJ mol^(-1)and DeltaS = ...

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  3. Bond enthalpies of H-H, Cl-Cl and H-Cl bonds are 434 kj mol^(-1), 242 ...

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  4. Which of the following is not a state function?

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  5. Which of the following is not an extensive property?

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  6. An endothermic reaction is one in which heat content of

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  7. In a chemical reaction, work is done by the system when

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  8. Which of the following is an intensive property?

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  9. When a sample of an ideal gas is allowed to expand at constant tempera...

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  10. A gas of 0.320 kJ works on its surroundings and absorbs 120 J of heat ...

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  11. In the reaction, H2 + Cl2 rarr 2HCl DeltaH =-184 kJ, if 2 moles of H2 ...

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  12. The enthalpies of formation of N2O and NO at 298 K are 82 and 90 kJ mo...

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  13. For which of the following substances DeltafH^@ is not zero.

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  14. If for a reaction, DeltaH is negative and DeltaS is positive then the ...

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  15. Properties of a system which are proportional to the quantity of matte...

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  16. Obtain the relationship between DelatG^@ of a reaction and equilibrium...

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  17. DeltaH for the reaction 2H(g) rarr H2(g) will be

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  18. For the process, H2O(l) rarr H2O((g)) at 100^@C, DeltaS is

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  19. Which represents largest amount of energy?

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  20. Which of the following process is non-spontaneous?

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