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Flashcards in Notes - Temp Deck (93)
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1

In Kinetics, the formula to work out temperature for a reaction is:

T=∆H/∆S

2

Pauli's exclusion principle:

Can't have the same set of quantum numbers

3

Aufbau

Fill in order of increasing energy

4

Hund's

Fill singly before pairing

5

Heisenburg

Cant define both position and velocity of electron at any time

6

Principle quantum number refers to

shell

7

Angular quantum number refers to

orbital

8

Magentic quantum number refers to

orientation

9

Spin quantum number refers to

spin

10

0 order units are

mol l-1 s-1

11

1st order units are

s-1

12

2nd order units are

mol-1 l s-1

13

3rd order units are

mol-2 l2 s-1

14

To work out k, the formula is

k = rate/ [A][B]

15

The slow step shows the reactant dependant on the reaction so if a reactant isnt there will it be in the rate equation?

no

16

Order of reaction can be worked out from the slow or fast step?

SLOW

17

Anthing burned is always: endo or exo

Exothermic

18

Why is combustion exothermic?

Change of state increases disorder

19

What is the only thing that can affect the equilibrium constant?

Temperature!!!

20

Does increasing the concentration of products or reactants in the equilibrium constant do anything?

NAW, only temperature

21

In evaporation reactions, ∆H is

positive

22

In evaporation reactions, ∆S is

Positive

23

If ∆G is negative then equilibrium lies to the

RHS

24

∆G is known as Gibb's free energy or

standard free energy

25

For a reaction to be feasible ∆S must be?

Positive

26

For a reaction to be feasible ∆G must be?

Negative

27

If K>1, then ∆G is

negative

28

If K

positive

29

If K=1 then ∆G is

0

30

In a combustion reaction the values of ∆S and ∆H are

∆S is positive, ∆H is negative