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DeltaH for CaCO(3 (s)) to CaO((s)) + CO...

`DeltaH` for `CaCO_(3 (s)) to CaO_((s)) + CO_(2 (g))` is 176 kJ `mol^(-1) ` at 1240 K . The `DeltaU` for the change is equal to :

A

160 kJ

B

165.6 kJ

C

186.3 kJ

D

`180.0` kJ

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The correct Answer is:
B
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MOTION-THERMOCHEMISTRY -EXERCISE - 2 (LEVEL - I)
  1. Select the correct order in the following :

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  2. For hypothetical reaction A(g) + B(g) to C(g) + D(g) Which of the ...

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  3. DeltaH for CaCO(3 (s)) to CaO((s)) + CO(2 (g)) is 176 kJ mol^(-1) at...

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  4. For which of the following change Delta H ne Delta E ?

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  5. According to Hess's law, the thermal effects of a reaction depends on

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  6. The net heat change in a chemical reaction is same whether it is broug...

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  7. The enthalpy of the reaction H(2)O(2) ("?") to H(2) O ("?") + 1//2 O(...

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  8. When enthyne is passed through a red hot tube, then formation of benze...

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  9. How much heat will be required at constant pressure to form 1.28 kg of...

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  10. Given : (i) NH(3) (g) + 3Cl(2)(g) rarr NCl(3)(g)+3HCl(g), Delta H(1)...

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  11. Difference between DeltaH and Delta E for the combusion of liquid benz...

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  12. (i) Cis -2- butene to trans-2-butene , Delta H(1) (ii) Cis - 2 - but...

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  13. From the following data, the heat of formation of Ca(OH)(2 (s)) at ...

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  14. Given that DeltaH(" comb ") of cyclopropane is -4000 kJ mol^(-1) . The...

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  15. Heat of combustion of CH(4),C(2)H(6), C(2)H(4) and C(2)H(2) gases are ...

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  16. Enthalpy change of the reaction 2H(g) to H(2)(g) is -104 kcal The ...

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  17. Calculate the bond energy of C-H bond from the following data : (a) ...

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  18. Heat evolved in the reaction H(2)+Cl(2) rarr 2HCl is 182 kJ Bond ene...

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  19. The bond enthalpies of H(2) , X(2) and HX are in the ratio of 2 : 1 : ...

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  20. For the reaction, bond energies are given as under – (i) C—C,...

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