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DeltaH^(Theta)underset(f)' 298K of metha...

`DeltaH^(Theta)underset(f)' 298K` of methanol is given by the chemical equation

A

`CH_(4)(g) +(1)/(2)O_(2)(g) rarr CH_(3)OH(g)`

B

`C("graphite") +(1)/(2)O_(2)(g) +2H_(2)(g) rarr CH_(3)OH(l)`

C

`C("diamond") +(1)/(2)O_(2)(g) +2H_(2)(g) rarr CH_(3)OH(l)`

D

`CO(g) +2H_(2)(g) rarr CH_(3)OH(g)`

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To determine the standard enthalpy of formation (ΔH°_f) of methanol (CH₃OH) at 298 K, we need to identify the correct chemical equation that represents the formation of methanol from its elements in their standard states. ### Step-by-Step Solution: 1. **Identify the Elements in Methanol**: Methanol consists of carbon (C), hydrogen (H), and oxygen (O). 2. **Determine the Standard States of the Elements**: ...
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CENGAGE CHEMISTRY ENGLISH-THERMODYNAMICS-Archives (Subjective)
  1. DeltaH^(Theta)underset(f)' 298K of methanol is given by the chemical e...

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  2. The enthalpies for the following reactions (DeltaH^(Theta)) at 25^(@)C...

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  3. The standared enthalpies of formation at 298K for C C1(g), H(2)O(g), C...

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  4. Given that: i. C(s) + O(2)(g) rarr CO(2)(g) , DeltaH =- 94.05 kcal ...

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  5. The following statement is true only under some specific conditions. W...

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  6. The bond dissociation energies of gaseous H(2),Cl(2), and HCl are 100,...

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  7. The standard molar heat of formation of ethane, carbon dioxide and wat...

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  8. An intimate mixture of ferric oxide and aluminium is used as solid fue...

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

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  10. CsOH +HCI rarr CsCI +H(2)O, DeltaH =- 13.4 kcal mol^(-1)……….(i) CsOH...

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  11. Determine enthalpy change for, C(3)H(8(g))+H(2(g))rarr C(2)H(6(g))+C...

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  12. Compute the heat of formation of liquid methyl alcohol in kilojoule pe...

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  13. From the following data, calculate the enthalpy change for the combust...

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  14. The standard heat of formation values of SF(6)(g), S(g), and F(g) are ...

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  15. Show that the reaction CO(g) +(1//2)O(2)(g) rarr CO(2)(g) at 300K ...

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  16. A sample of argon gas at 1atm pressure and 27^(@)C expands reversibly ...

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  18. The standart potential of the following cell is 0.23 at 15^(@)C and 0....

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  19. When 1pentyne (A) is treated with 4N alcoholic KOH at 175^(@)C, it is ...

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