Y2 Thermodynamics (P)

Question 1

Enthalpy change

Answer 1

Question 2

Enthalpy of formation

Answer 2

Question 3

Enthalpy of combustion

Answer 3

Question 4

Enthalpy of formation equation

Answer 4

Question 5

Enthalpy of combustion equation

Answer 5

Question 6

First and second ionisation Enthalpy

Answer 6

Question 7

First and second electron affinity

Answer 7

Question 8

Hess’s Law

Answer 8

Question 9

Sublimation

Answer 9

State change from solid to gas

Question 10

Constructing born Haber cycles

Answer 10

Question 11

Short born haber cycles

Answer 11

Question 12

Lattice Enthalpy comparisons

Answer 12

Question 13

Lattice dissociation Enthalpy

Answer 13

Question 14

Lattice formation Enthalpy

Answer 14

Question 15

Atomisation Enthalpy

Answer 15

Question 16

Electron affinity general

Answer 16

Question 17

Born haber cycle example and order

Answer 17

Question 18

Enthalpy of solution

Answer 18

Question 19

Enthalpy of hydration

Answer 19

Question 20

Short born haber cycles formula

Answer 20

LE (lattice Enthalpy of)

Question 21

Assumptions of the perfect ionic model

Answer 21

Question 22

Why Perfect ionic model most often does not hold true

Answer 22

Question 23

PIM cations are

Answer 23

Polarising ( smaller means greater charge density)

Question 24

PIM anions are

Answer 24

Polarisable ( larger the size means the electron cloud is distorted more easily )

Question 25

When does PIM not hold true?

Answer 25

Question 26

What do things tend to in chemistry

Answer 26

Entropy (disorder)

Question 27

The more disordered a substance

Answer 27

The greater the entropy value

Question 28

Entropy change as temp increases

Answer 28

Increases as particles gain more energy and move further apart (less ordered)

Question 29

Entropy

Answer 29

Question 30

With entropy questions always remember to

Answer 30

Divide by 1000 as units are J/K/mol but need Kj/K/mol

Question 31

All spontaneous reactions have

Answer 31

Positive entropy value, disorder increases

Question 32

Spontaneity

Answer 32

Question 33

When is delta G feasible?

Answer 33

When it is less than zero

Question 34

To find temp reaction becomes feasible

Answer 34

Set delta G to zero

Question 35

Gibbs free energy equation

Answer 35

Question 36

Graphing Gibbs free energy equation

Answer 36

Question 37

On the graph when is it feasible (possibilities)

Answer 37

Question 38

Enthalpy of fusion

Answer 38

Question 39

Enthalpy of Vapourisation

Answer 39

Question 40

Enthalpy of hydrogenation

Answer 40