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2.1g of Fe combines with S evolving 3.7...

`2.1g` of `Fe ` combines with `S` evolving `3.77KJ` . The heat of formation of `FeS` in `KJ//mol` is

A

`-3.77`

B

`-1.79`

C

`-100.5`

D

none of these

Text Solution

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The correct Answer is:
C
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RC MUKHERJEE-CHEMICAL THERMODYNAMICS-Objective problems
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  2. Heats of combustion of CH(4),C(2)H(4), C(2)H(6) are -890, -1411 and -1...

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  3. 2.1g of Fe combines with S evolving 3.77KJ . The heat of formation of...

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  4. When a certain amount of ethylene was combusted, 6226 kJ heat was evol...

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  5. {:[(H(2)(g)+(1)/(2)O(2)(g)=H(2)O(g),DeltaH=-241.8kJ),(CO(g)+(1)/(2)O(2...

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  6. {:[(H(2)(g)+(1)/(2)O(2)(g)=H(2)O(g),DeltaH=-241.8kJ),(C(2)H(2)(g)+2(1)...

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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. Heat of neutralisation of a strong acid by a strong base is equal to D...

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  10. In which case of mixing of a strong acid and a base each of 1N concent...

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  11. The heat of neutralisation of HCl by NaOH is -55.9 kJ//"mole". If the ...

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  12. The dissociation energy of CH(4) and C(2)H(6) are respectively 360 and...

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  13. In which of the following cases entropy decreases?

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  14. In which of the following reactions DeltaS is positive?

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  15. The Delta G in the process of melting of Ice at -15^(@) C is

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  16. In a reaction , DeltaH and DeltaS both are more than zeron. In which o...

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  17. In which case is a reaction possible at any temperature ?

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  18. In which case is a reaction impossible at any temperature ?

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  19. The difference between the heats of reaction at constant pressure and ...

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  20. Molar heat capacity of water in equilibrium with ice at constant press...

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