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Which of the following equations corresp...

Which of the following equations corresponds to the enthalpy of combustion at `298K`?

A

`C_(2)H_(6)(g)+7//2O_(2)9g)rarr 2CO_(2)(g)+3H_(2)O(g)`

B

`2C_(2)H_(6)(g)+7O_(2)(g)rarr 4CO_(2)(g)+6H_(2)O(g)`

C

`C_(2)H_(6)(g)+7//2O_(2)(g)rarr 2CO_(2)(g)+3H_(2)O(l)`

D

`2C_(2)H_(6)(g)+7O_(2)(g)rarr 4CO_(2)(g)+6H_(2)O(l)`

Text Solution

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The correct Answer is:
C
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ALLEN-THERMODYNAMICS -EXERCISE -3
  1. In the combustion of 0.4 g. of CH(4) 0.25 Kcal. Of heat is liberated. ...

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  2. If C(6)H(12)O(6)(s)+9O(2)(g)rarr6CO(2)(g)+6H(2)O(g) , Delta H=-680 Kca...

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  3. Which of the following equations corresponds to the enthalpy of combus...

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  4. Heat of formation of CO(2) is -94.0 K. cal. What would be the quantity...

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  5. The amount of heat liberated when one mole of NH(4)OH reacts with one ...

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  6. If H^(+)+OH^(-)rarrH(2)O+13.7Kcal , the heat of neutralisation for com...

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  7. Heat of neutralisation of a strong dibasic acid in dilute solution by ...

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  8. The temperature of a 5mL of strong acid increases by 5^(@) when 5 mL o...

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

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  10. If water is formed from H^(+) ions and OH^(-) the heat of formation of...

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  11. The change in the enthalpy of NaOH+HCl rarr NaCl+H(2)O is called :

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  12. Heat of neutralisation of oxalic acid is -106.7 KJ mol^(-1) using NaOH...

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  13. The heats of combustion of C(2)H(4), C(2)H(6) and H(2) gases are -1409...

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  14. The enthalpy of combustion of H(2) , cyclohexene (C(6)H(10)) and cyclo...

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  15. Bond energy of a molecule :

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  16. Among the following for which reaction heat of reaction represents bon...

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  17. The bond energies of F(2),Cl(2),Br(2) and I(2) are 155.4, 243.6, 193.2...

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  18. Energy required to dissociate 4g of gaseous hydrogen into free gaseous...

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

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  20. The enthalpy change for the reaction H(2)(g)+C(2)H(4)(g)rarr C(2)H(6)(...

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