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For which of the following equations, wi...

For which of the following equations, will `DeltaH` be equal to `DeltaU`?

A

`H_(2)(g)+1//2O_(2)(g) rarr H_(2)O(l)`

B

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

C

`2NO_(2)(g)rarr N_(2)O_(4)(g)`

D

`4NO_(2)(g)+O_(2)(g) rarr 2N_(2)O_(5)(g)`

Text Solution

Verified by Experts

`DeltaH = DeltaU +DeltanRT`
`In (b), Deltan = 0`
`:. DeltaH = DeltaU`
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CENGAGE CHEMISTRY-THERMODYNAMICS-Exercises (Single Correct)
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  5. Enthalpy chane of a reaction with be equal to

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  6. The molar enthalpies of combustion of C(2)H(2)(g), C("graphite") and H...

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  7. The relationship between enthalpy and internal energy change is

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  8. The equilibrium state is attained when the reversible reaction is carr...

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  9. The relationship between the free energy change (DeltaG) and entropy c...

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  10. For the gaseous reaction involving the complete combustion of isobutan...

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  11. Entropy of system depends upon

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  12. For the gaseous reaction: N(2)O(4) rarr 2NO(2)

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  13. For the reversible process, the value of DeltaS is given by the expres...

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  14. For a process H(2)O(s) rarr H(2)O(l) at 273 K

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  15. i. At absolute zero the entropy of a perfect crystal is zero. This sta...

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  16. In which of the following process DeltaH and DeltaU are of same magnit...

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  17. Enerrgy can transfter from syetm to surroundings as work if

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  18. The state of equilibrium refers to

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  19. For hypothetical reversible reaction 1//2A(2)(g) +3//2B(2)(g) rarr A...

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

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