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Given C(s)+O(2)(g)toCO(2)(g), DeltaH=-...

Given
`C(s)+O_(2)(g)toCO_(2)(g)`, `DeltaH=-395 kJ`
`S(s)+O_(2)(g)toSO_(2)(g)`, `DeltaH=-295 kJ`
`CS_(2)(l)+3O_(2)(g)toCO_(2)(g)+2SO_(2)(g)`, `DeltaH=-1110 kJ`
The heat of formation of `CS_(2)(l)` is

A

250 kJ

B

62.5 kJ

C

31.25 kJ

D

125 kJ

Text Solution

Verified by Experts

The correct Answer is:
D
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OP TANDON-Chemical Thermodynamics and Thermochemistry-Objective Question Level-A
  1. The standard heats of formation at 298K for C Cl(4)(g),H(2)O(g),CO(2)(...

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  2. Heats of combustion of CH(4),C(2)H(6),C(2)H(4) and C(2)H(2) are -212.8...

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  3. Given C(s)+O(2)(g)toCO(2)(g), DeltaH=-395 kJ S(s)+O(2)(g)toSO(2)(g...

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  4. The heats evolved in combustion of rhombic and monoclinic sulphur are,...

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  5. The bond dissociation energy of C-H in CH(4) from the equation C(g)+...

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  6. The dissociation energy of CH(40 and C(2)H(6) are respectively 360 and...

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  7. When 10 mL of a strong acid is added to 10 mL of an alkali, the temper...

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

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

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  10. Given that, heat of neutralisation of strong acid and strong base is 5...

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  11. Which of the following value of DeltaH(f)^(@) represent that the produ...

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  12. The value of DeltaH(O-H) is 109 kcal mol^(-1). Then formation of one m...

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

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  14. The enthalpy changes at 298 K in successive breaking of O-H bonds of ...

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  15. The combustion of methane is written as CH(4)(g)+2O(2)(g)toCO(2)(g)+...

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  16. A spontaneous change is one in which a system under goes

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  17. In which of the following change entropy decreases?

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  18. For the percipitation reaction of Ag^(o+) ions with NaCI, which of the...

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  19. If the enthalpy of vaporisation of water is 186.5 J mol^(-1), then ent...

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  20. A reaction is non-spontaneous when:

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