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In which of the following reactions is D...

In which of the following reactions is `Delta H` not equal to `Delta E ` ?

A

`HCl(aq)+NaOH (aq) rarr NaCl(aq) +H_(2)O(l)`

B

`C(s)+O_(2)(g)rarr CO_(2)(g)`

C

`H_(2)(g)+I_(2)(g) rarr 2HI(g)`

D

`N_(2)(g)+3H_(2)(g) rarr 2NH_(3)(g)`

Text Solution

Verified by Experts

The correct Answer is:
D
Because number of moles are different on both sides.
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DINESH PUBLICATION-IONIC EQUILIBRIUM -BRAIN TEASERS -3
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  3. In which of the following reactions is Delta H not equal to Delta E ?

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  4. The enthalpies of combustions are (i) Delta H(c ) (C(2)H(6))=- 1560...

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  5. Consider the reaction : SO(2)(g)+(1)/(2)O(2)(g) rarr SO(3)(g),Delta...

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  6. The enthalpy changes at 298 kJ in successive breaking of O-H bonds of...

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

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  8. Which of the following is not expected to be correct

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  9. If a gas absorbs 200J of heat and expands by 500 cm^(3) against a cons...

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  10. For a hypothetical reaction, 2A+B hArr C + energy , the activeation ...

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  11. DeltaH("fus") is the latent heat of melting and T("fus") is the meltin...

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  12. Which of the following reactions is Delta H less than Delta E ?

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  13. A chemical reaction with Delta H gt0 carried out at constant temperatu...

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  15. Which of the following relatiosn is correct ?

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  17. The enthalpy of formation (Delta H(f)) of a compound from its elements...

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  18. The work done in an isothermal reversible expansion of n moles of a ga...

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  19. Which of the following statements do not require the assumption of a p...

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  20. The work done in an isothermal reversible change involving an ideal ga...

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