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For a gaseous reaction, A(g)+3B(g)to3C(g...

For a gaseous reaction, `A(g)+3B(g)to3C(g)+3D(g),DeltaU` is 17 kcal at `27^(@)C`. Assuming `R=2cal" "K^(-1)mol^(-1)`, the value of `DeltaH` for the above reaction is:

A

15.8 Kcal

B

18.2 Kcal

C

20.0 Kcal

D

16.4 Kcal

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The correct Answer is:
B
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ALLEN-THERMODYNAMICS -EXERCISE -2
  1. Under which of the following conditions is the relation, Delta H = Del...

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  2. The difference heats of reaction at constant pressure and constant vol...

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  3. For a gaseous reaction, A(g)+3B(g)to3C(g)+3D(g),DeltaU is 17 kcal at 2...

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  4. For the reaction CO(g)+(1)/(2)O(2)(g)rarr CO(2)(g) Which one of the ...

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  5. For the reaction Ag(2)O(s)rarr 2Ag(s)+1//2O(2)(g), which one of the fo...

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  6. A mixture of 2 moles of carbon monoxide and one mole of oxygen in a cl...

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  7. For the gaseous reaction involving the complete combustion of iso-buta...

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  8. For the reversible isothermal expansion of one mole of an ideal gas at...

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  9. For CaCO(3)(s)rarr CaO(s)+CO(2)(g) at 977^(@)C, Delta H = 174 KJ/mol ,...

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  10. Heat of reaction for, CO(g)+1//2O(2)(g)rarr CO(2)(g) at constant V is ...

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  11. The reaction: NH(2)CN(s) +(3)/(2)O(2)(g)rarr N(2)(g) +CO(2)(g) +H(2)...

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  12. The enthalpy of vaporisation of water at 100^(@)C is 40.63 KJ mol^(-1)...

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  13. The difference in Delta H and Delta E for the combustion of methane at...

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  14. For the system S (s) + O(2)(g) rarr SO(2)(g) ?

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  15. For the reaction CO(g)+(1)/(2)O(2)(g)rarr CO(2)(g) Which one of the ...

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  16. Which is true for the combustion of sucrose (C(12)H(22)O(11)) at 25^(@...

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  17. For which change Delta H ne Delta E :-

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  18. The heat of combustion of ethanol determinal in a bomb calorimeter is ...

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  19. The difference in Delta H and Delta E for the combustion of methane at...

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

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