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Which of the following value of DeltaH(f...

Which of the following value of `DeltaH_(f)^(@)` represent that the product is least stable ?

A

`-94.0 kcal mol^(-1)`

B

`-231.6 kcal mol^(-1)`

C

`+21.4 kcal mol^(-1)`

D

`+64.8 kcal mol^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
D
`Delta_(f)Huarr"stability"darr`
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NARENDRA AWASTHI-THERMODYNAMICS-Exercise
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  2. The standard enthalpy of formation of gaseous H(2)O at 298 K is -241.8...

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

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  4. For which of the following substances is the heat of formation in the ...

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  5. Calculate the standard enthalpy of reaction for the following reaction...

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  6. Given the following equations and DeltaH^(@) values, determine the ent...

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  7. Given : C("diamond")+O(2)rarrCO(2),DeltaH=-395 kJ C("graphite"...

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  8. Which of the following equations represents a reaction that provides t...

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  9. Use the given standard enthalpies of formation (in kJ/mol) to determin...

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  10. The standard enthalpy of formation of octane (C(8)H(18)) is -250kJ //m...

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  11. Determine the enthalpy of formation of B(2)H(6)(g) in kJ/mol of the fo...

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  12. Consider the following reactions: C(s)+O(2)(g)toCO(2)(g)+x " kJ" C...

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  13. If Delta(f)H^(@)(C(2)H(4)) and Delta(f)H^(@)(C(2)H(6)) are x(1) and x(...

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  14. Calculate the heat of formation of n butane from the following data: ...

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  15. The enthalpy of the reaction forming PbO according to the following eq...

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  16. The fat, C(57)H(104)O(6)(s), is metabolized via the following reaction...

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  17. The heat of formation of NH(3)(g) is -46 " kJ mol"^(-1). The DeltaH (i...

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  18. Consider the following reaction: H(2)O(l)toH(2)O(g)" "DeltaH(1)=44...

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  19. The standard enthalpy change for the following reaction is 436.4 kJ : ...

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  20. Determine enthalpy of formation for H(2)O(2)(l), using the listed enth...

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