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Flashcards in 17 - 2 Deck (21):
0

What are most reactions in nature?

Exothermic

1

Enthalpy & rxn tendency produce...

Low energy, stable products

2

Enthalpy & rxn tendency proceed...

Spontaneously

3

Describe entropy & rxn tendency

A measure of the disorder or randomness of particles in a system

4

Symbol for entropy and rxn tendency

TRIANGLE S

5

Equation for entropy & rxn tendency

TRIANGLE S= S products -S reactants

6

What are entropy and rxn tendacys order?

Kj/mol•K

7

List order of Entropy

S solid< S liquid < S gas

8

What has the most disorder & highest S?

Gas

9

What has the least disorder and and lowest S?

Solids

10

In entropy rxns are...

Favored to occur if S increases

11

What does nature tend toward?

High disorder

12

What does nature favor?

Rxns that result in low enthalpy & high entropy

13

Describe Gibbs free nrg

A value used to predict whether

14

What is symbol for Gibbs free nrg?

TRIANGLE G

15

What are units for Gibbs free nrg?

KJ/mol

16

What's formula for Gibbs free nrg?

TRIANGLE G= TRAINGLE H - T;TRIANGLE S

17

What does

Measures the combined effects of H & S at a specific T

18

What happens if

Rxn is spontaneous described as "exergonic"

19

What happens if

Rxn is no spontaneous described as "endergonic"

20

What if

It has reached equilibrium