Energetics 2 Worked examples Ea from graph - Phoenix Hoyle | Library

1

Gradient = _______ K
Ea = _______ kJmol-1

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(i) =  _______ x 10-3
(ii) = _______ 
EA = _______ 

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Value 1 = _______ x10-3 
Value 2 = _______ 
Gradient = _______ 
EA = _______ kJ mol-1

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ionic solid

Other Answer Choices:

Elements in standard states

gaseous ions

Ionic lattice

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Other Answer Choices:

(dissociation)

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Other Answer Choices:

3

Born Haber cycle = 𝟏/𝟐 E(F–F) + 732 + 289 + +203 = 348 + 955
1/2 bond Enthalpy (F-F) = _______ kJmol-1
Bond enthalpy = _______ kJmol-1

1

Experimental lattice enthalpy value allows for:
includes_____________   interaction ( non–spherical ions / distorted ions / polarisation)

OR AgF has ______________________  character 

Theoretical lattice enthalpy value assumes only __________  interaction 
(point charges / no _____________  character / perfect spheres )

OR AgF is not perfectly __________ )

Other Answer Choices:

ionic

covalent

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Comparing lattice enthalpies
Chloride ion ___________  than fluoride ion 

Attraction between Ag+ and Cl – ______________________.  

Other Answer Choices:

larger

weaker

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Enthalpy of hydration calculation
Enthalpy change when __________  of a ____________  ion forms ____________  ions


+77 = +905 – 464 + ∆H(hydration, Cl– )
_____________________ 

Other Answer Choices:

gaseous

–364 (kJ mol–1 )

1 mol

aqueous

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Mastered__________