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N(2(g)) + 2O(2(g)) rarr 2NO(2) + xkJ, 2N...

`N_(2(g)) + 2O_(2(g)) rarr 2NO_(2) + xkJ, 2NO_((g)) + O_(2(g)) rarr 2NO_(2(g)) + ykJ`. The enthalpy of formation of NO is

A

(2X – 2Y)

B

X - Y

C

1/2 (Y-X)

D

1/2 (X - Y)

Text Solution

Verified by Experts

The correct Answer is:
C
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AAKASH SERIES-CHEMICAL THERMODYNAMICS-OBJECTIVE EXERCISE - 2 (HESS LAW)
  1. The standard enthalpies of formation of H(2)O(2(l)) and H(2)O((l)) are...

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  2. N(2(g)) + 2O(2(g)) rarr 2NO(2) + xkJ, 2NO((g)) + O(2(g)) rarr 2NO(2(g)...

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  3. If S + O(2) rarr SO(2), DeltaH= -398.2kJ SO(2) + (1)/(2) O(2) rarr S...

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  4. Given that S((s)) + 3/2 O(2(g)) rarr SO(3(g)) + 2xK.cal SO(2(g)) +...

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  5. Given C((s)) + O(2(g)) rarr CO(2(g)), Delta H = -395 kJ , S((g)) + O(2...

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  6. 1)C("Graphite") + O(2(g)) rarr CO(2(g)) , DeltaH = -94 K.Cals 2) C("...

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  7. DeltaH of combustion of yellow P and red P are - 11 K.J and -9.78 KJ r...

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  8. How much energy is released when 6 mole of octane is burnt in air? Giv...

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  9. Given C+ 2S rarr CS(2), DeltaHf^(0) = +117.0 KJ mol^(-1), C + O(2) rar...

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  10. The standard heat of formation of sodium ions in aqueous solution from...

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  11. The lattice energy of solid NaCl is 180K. Call per mol. The dissolutio...

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  12. Heat of formation of CO and CO2 are -26.4, -94.0 kcal/mole respectivel...

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  13. Cl((g)) + e^(-) rarr Cl((g))^(-) , EA = -348 kJ//"mole" at 0 K. then D...

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  14. For the reaction: 2H(2(g)) + O(2(g)) rarr 2H2O((g)) , DeltaH = -571 ...

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  15. If values of DeltaHf^@ of ICl((g)), Cl((g)) and I((g)) are respective...

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  16. The enthalpy changes for the following processes are listed below:  ...

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  17. The enthalpies of HCl, NaOH ,NaCl and H(2)O are -120, -82, -148 and -6...

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  18. DeltaH^(0) for a reaction F(2) + 2HCl rarr 2HF + Cl(2) is given as -35...

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  19. What is theheat of formation of C(6)H(6), given that the heats of comb...

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  20. The heats of combustion of carbon hydrogen and acetylene are -394kJ, -...

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