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If water is formed from H and OH^(-) ion...

If water is formed from H and `OH^(-)` ions then the enthalpy of formation of water is

A

`-13.7` Kcal

B

13.7 Kcal

C

`-63.4` Kcal

D

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A
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ALLEN-THERMODYNAMICS -EXERCISE -3
  1. The temperature of a 5mL of strong acid increases by 5^(@) when 5 mL o...

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  2. The enthalpy of neutralisation of HCl by NaOH IS -55.9 kJ and that of...

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  3. If water is formed from H and OH^(-) ions then the enthalpy of formati...

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  4. The change in the enthalpy of NaOH+HCl rarr NaCl+H(2)O is called :

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  5. Heat of neutralisation of oxalic acid is -106.7 KJ mol^(-1) using NaOH...

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  6. The heat of combustion of C2H4 C2H6 and H2 are- 1409.5 kJ,- 1558.3kJ a...

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  7. The enthalpy of combustion of H(2), cyclohexene (C(6)H(10)) and cycloh...

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  8. Bond energy of a molecule :

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  9. Among the following for which reaction heat of reaction represents bon...

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  10. The bond energies of F2 Cl2, Br2 and I2 are 155.4, 243.6, 193.2 and 15...

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  11. Energy required to dissociate 4 g of gaseous hydrogen into free gaseou...

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  12. Heat evolved in the reaction H(2)[g]+Cl(2)[g] rarr 2HCl[g] is 182 kJ...

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  13. The enthalpy change for the reaction H(2)(g)+C(2)H(4)(g)rarr C(2)H(6)(...

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  14. Bond dissociation enthalpies of H(2)(g) and N(2)(g) are 436.0 kJ mol^(...

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  15. Consider the reactions : C((s))+2H(2(g)) rarr CH(4(g)), DeltaH=-X kc...

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  16. The enthalpy changes at 298K in successive breaking of O-H bonds of ...

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  17. If values of Delta(f)H^(Theta) of ICI(g),CI(g), and I(g) are, respecti...

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  18. The heat of dissociation of benzene in isolated gaseous atoms is 5335 ...

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

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

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