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The enthyalpy change for the process C("...

The enthyalpy change for the process `C_("(graphite)") rarr C_((g)), DeltaH= + x kJ` represents enthalpy of

A

Fusion

B

Sublimation

C

Combustion

D

Vapourisation

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The correct Answer is:
B
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The enthalpy change for the following process are listed below : (a) Cl_(2(g)) rarr 2Cl_((g)), DeltaH=242.3kJ mol^(-1) (b) I_(2(g))rarr 2I_((g)), DeltaH=151.0kJ mol^(-1) (c) ICl_((g)) rarr I_((g))+Cl_((g)), DeltaH=211.3kJ mol^(-1) (d) I_(2(s)) rarr I_(2(g)), DeltaH=62.76kJ mol^(-1) If standard state of iodine and chloride are I_(2(s)) and Cl_(2(g)) , the standard enthalpy of formation for ICl_((g)) is :

C(s)("graphite") rarr C(g), DeltaH = 716.7 kJ DeltaH is the heat of ……………….of graphite.

Given: DeltaH_(EG) of A^(+) =- 5x DeltaH_(EG) of A^(2+) =- 8x DeltaH_(IE) of A^(2+) = 15x DeltaH_(EG) of A^(4+) =- 23x If the enthalpy change in the given process A^(+)(g) rarr A^(4+)(g) is DeltaH = ax Then 'a' will be

The enthalpy change for the following reactions are: C_("diamond")+O_(2(g)) rarr CO_(2(g))" "DeltaH=-395.3 KJ "mol"^(-1) C_("graphite")+O_(2(g)) rarr CO_(2(g)) " "DeltaH=-393.4 KJ "mol"^(-1) The enthalpy change for the transition C_("diamond")rarr C_("graphite") will be :

NARAYNA-THERMODYNAMICS-C.U.Q
  1. Charge in enthalpy and change in internal energy are equal at room tem...

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  2. For the transition C("(diamond)") rarr C("(graphite)"), DeltaH=-1.5 kJ...

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  3. The enthyalpy change for the process C("(graphite)") rarr C((g)), Delt...

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  4. H(2) (g) +I(2) (g) rarr 2HI (g), DeltaH=51.9 kJ. According to this, ...

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  5. The equation in according with the definition of standard heat of form...

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  6. Which of the following values of heat of formation indicates that the ...

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  7. Among the following gases, heat of combustion is highest for

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  8. The standard enthalpy of formation (Delta(f)H^(@)) at 298K for methan...

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  9. Calculate the enthalpy of formation of Delta(f)H for C(2)H(5)OH from t...

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  10. The standard enthyalpy of N(2(g))+3H(2(g)rarr2NH(3(g)) is

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  11. Hess's law of constant heat summation is bases on

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  12. According to Hess's law, the thermal effects of a reaction depends on

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  13. The standard heat of combustion of graphite carbon is -393.5 kJ mol^(-...

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  14. The heat of combustion is

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  15. Calculate the calorific value of octane a component of gasoline with t...

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  16. The following is not a combustion reaction

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  17. With increase in number of carbon atoms in alkanes, heat of combustion

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  18. The number of water molecules formed in the combustion of one mole of ...

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  19. NH(4)Cl(s) +H(2)O rarr NH(4) Cl (aq) DeltaH=16.3 kJ DeltaH in the ...

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  20. When ammonium chloride is dissolved in water the solution becomes cold...

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