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The enthalpy change for the reaction 2C(...

The enthalpy change for the reaction `2C("graphite")+3H_(2)(g)rarrC_(2)H_(6)(g)` is called

A

Enthalpy of formation

B

Enthalpy of combustion

C

Enthalpy of hydrogenation

D

Enthalpy of vaporisation

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A
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The enthalpy change for the reaction H_(2)(g)+C_(2)H_(4)(g)rarr C_(2)H_(6)(g) is ……………… The bond energies are, H - H=103, C-H=99, C-C=80 & C=C=145 "K cal mol"^(-1)

The enthalpy change for the reaction, C_(2)H_(4)(g)+3O_(2)(g)to2CO_(2)(g)+2H_(2)(g) is called:

The enthalpy change for the reaction C_(3)H_(8)(g)+H_(2)(g) rarr C_(2)H_(6)(g)+CH_(4)(g) at 25^(@)C is -55.7 kJ/mol. Calculate the enthalpy of combustion of C_(2)H_(6)(g) . The enthalpy of combustion of H_(2) , & CH_(4) are -285.8 & -890.0 kJ/mol respectively. enthalpy of combustion of propane is -2220" kJ mol"^(-1) .

Using the bond enthalpy data given below, calculate the enthalpy change for the reaction C_(3)H_(4)(g)+H_(2)(g)rarrC_(2)H_(6)(g) {:("Data":,"Bond",,"Bond enthalpy",),(,C-C,,336KJmol^(-1),),(,C=C,,606KJmol^(-1),),(,C-H,,410KJ mol^(-1),),(,H-H,,431KJ mol^(-1),):}

The bond enthalpy of C - C, C = C, H - H and C - H bonds are 350,600,400 and 410 kJ · mol-1 respectively. The enthalpy change for reaction C_(2)H_(4(g)) +H_(2(g)) rarr C_(2)H_(6(g)) is

The enthalpy change for the process C("graphite") rarr C(g) is called

ALLEN-THERMODYNAMICS -EXERCISE -3
  1. If values of Delta(f)H^(Theta) of ICI(g),CI(g), and I(g) are, respecti...

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  2. Heat of dissociation of benzene to elements is 5535 KJ mol^(-1). The b...

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  3. The enthalpy change for the reaction 2C("graphite")+3H(2)(g)rarrC(2)H(...

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  4. Cl(2)(g)rarr2Cl(g), In this process value of Delta H will be -

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  5. The magnitude of heat of solution ….. On addition of solvent to soluti...

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  6. If H(2)(g)=2H(g),DeltaH=104cal , then heat of atomisation of hydrogen ...

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  7. The heat of combustion of yellow phoshphorus and red phosphorus are -9...

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  8. The enthalpy change for chemical reaction is denoted as DeltaH^(Theta)...

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  9. 2CO((g))+O(2(g))rarr 2CO(2(g))+X KJ In the above equation X KJ refers ...

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  10. Which of the following reactions represents Delta H (hydration) :-

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  11. Delta H for the reaction, I((g))+I((g))rarr I(2(g)) will be :-

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  12. Given that , A(s) rarr A(l)DeltaH=x A(l) rarr A(g), DeltaH=y The...

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  13. The enthalpy change of a reaction does not depend on

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  14. From the thermochemical reactions, C(graphite)+1//2O(2)rarr CO , Delta...

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  15. If H(2)+1//2O(2)rarr H(2)O , Delta =-68.39 Kcal K+H(2)O+ "water" rar...

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  16. Given C(s)+O(2)(g)rarr CO(2)(g)+94.2 Kcal H(2)(g)+2O(2)(g)rarr CO(2)...

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  17. From the following data, the heat of formation of Ca(OH)(2)(s) at 18^(...

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  18. If, H(2)(g)+Cl(2)(g)rarr 2HCl(g) , Delta H^(@)=-44 Kcal 2Na(s)+2HCl...

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  19. Given : S((s))+(3)/(2)O(2(g))rarrSO(3(g)+2X Kcal SO(2(s))+(1)/(2)O(2...

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  20. If S +O(2) rarr SO(2), DeltaH =- 298.2 kJ SO(2)+1//2O(2) rarr SO(3),...

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