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For decomposition of Ag(2)O into 2 mol o...

For decomposition of `Ag_(2)O` into `2` mol of `Ag(s)` and `1//2` mol of `O_(2)(g)`. The heat absorbed is `30.66 J`, when the process is carried out at constant volume. The process is carried out at constant volume. The value of `DeltaH`of process is

A

`-30.66 J`

B

`+30.66 J`

C

`+32.66 K`

D

Unpredictable

Text Solution

Verified by Experts

The correct Answer is:
D
For predicting the exact value, `T` is also required but it is not given.
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DINESH PUBLICATION-CHEMICAL THERMODYNAMICS AND CHEMICAL ENERGETICS -Exercise
  1. A system has internal energy equal to U(1), 450J of heat is taken out ...

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  2. Entropy of vaporisation of water at 100^(@)C, if molar heat of vaporis...

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  3. For decomposition of Ag(2)O into 2 mol of Ag(s) and 1//2 mol of O(2)(g...

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  4. One moles of anhydrous AB dissolves in water and liberates 21.0 J mol^...

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  5. The standard entropies of N(2)(g),H(2)(g) and NH(3)(g) are 191.5, 130....

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

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  7. If DeltaH(f)^(@) of Icl(g), Cl(g) and I(g) is 17.57, 121.34 and 106.96...

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  8. If the enthalpy of combustion of C(graphite) is -393.3kJ mol^(-1), the...

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  9. An ideal gas expands from 10^(-3) m^(3) to 10^(-2) m^(3) at 300 K agai...

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  10. The equilibrium constant for certain reaction is 100. If the value R i...

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  11. Bond dissociation energy of O(2)(g) is x k J mol^(-1). This means that

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  12. H(2)O(l)toH(2)O(g) , DeltaH=+43.7 kJ H(2)O(s)toH(2)O(l) , DeltaH=+6....

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  13. Given that CH(4)(g) +360 kJ rarr C(g) +4H(g) C(2)H(6)(g) +620 kJ r...

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  14. For a reaction Br(2)(l)+Cl(2)(g)to2BrCl at 300K the value of DeltaH=...

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  15. At what temperature, DeltaG of a reaction is equal to -5.2 kJ mol^(-1)...

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  16. For a reaction A(g)+3B(g)to2C(g) , DeltaH^(@)=-24kJ The value of D...

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  17. Consider the following reaction at equilibrium 2Fe^(2+)(aq)+Cu^(2+)to2...

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  18. A gas absorbs 400J of heat and expands by 2 xx 10^(-3) m^(3) against a...

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  19. The enthalpy of formation of ammonia is -46.0 kJ mol^(-1). The enthalp...

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  20. Which one of the following relations is incorrect ?

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