ion charge density Flashcards

1
Q

1 vs 2 charge ion s

A

2 has larger density
has higher atomisation energy
has a higher bigger hydration energy

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2
Q

1 smaller

A

smaller
has a higher atomisation energy
has a bigger hydration energy

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3
Q

entropy

A

the number of ways which an particles can arrangement themselves
the more energy particles have the more entropy it has
the measure of disorder

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4
Q

entropy

A

the measure of disorder

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5
Q

number of atoms

A

the more atoms present the higher the entropy

this is because there are many ways for the particles to be arrange

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6
Q

energy

A

the atoms move more

more disorder

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7
Q

feasible reaction

A

the reaction may be feasible

but the AE energy is too high

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8
Q

reaction is feasible if

A

g is less than or equal to zero

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9
Q

born haber one direction

A

formation - atomisation - ionisation - electron affinty

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10
Q

born haber second way

A

lattice enthalpy formation

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11
Q

why does theoretical enthalpy differ from experimental enthalpy

A

covalent characteristics in ionic bonds

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12
Q

why do covalent qualities arise?

A

due to polarisation

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13
Q

what is polarisation

A

when cations attract electrons in the anion this disorts the electron density in the anion towards the cation and the cation is polarised

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14
Q

polarising power

A

the ability of the cation to attract electrons to itself from an anion

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15
Q

what increase polarising power

A

small ions radius
high charge
high charge density

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16
Q

example questions

A

It is almost ionic.

very few covalent characters

17
Q

anion and polarisation

A

The ease that they are dicorted and polarised by the cation

18
Q

anions

A

large radius - far away from the nucleus

higher charge

19
Q

Entropy can

A

Increase

20
Q

entropy increases when

A

temperatures increases

this is because particles have kinetic energy; more movement therefore for more ways particles can be arranged