exam 3 Flashcards

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1
Q

enthalpy driven

A

a negative enthalpy reactions (/\H’rxn)

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2
Q

entropy driven

A

a positive entropy value (+)33333332222211

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3
Q

if Ln K > 0, K is

A

K > 1

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4
Q

if Ln K < 0, K is

A

K < 1

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5
Q

if Ln K = 0, K is

A

K = 1

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6
Q

Equation for Gibbs Free Energy

A

G = H - TS

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7
Q

if /\G’sys < 0, it is (spontaneous or nonspontaneous)

A

spontaneous

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8
Q

if /\G’sys > 0, it is (spontaneous or nonspontaneous)

A

nonspontaneous

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9
Q

when K > 1 it favors (reactants or products)

A

products

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10
Q

when K < 1 it favors (reactants or products)

A

reactants

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11
Q

ΔG (naught) equation

A

/\D (naught) = -RTlnK

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12
Q

if Q < K, the reaction proceeds

A

foward

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13
Q

if Q > K the reaction proceeds

A

in reverse

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14
Q

internal energy equation

A

/\E = q + w

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15
Q

finding work equation

A

w = -P/\V

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16
Q

enthalpy change equation

A

/\H = /\E + /(PV)

17
Q

/\H < O (exothermic or endothermic)

A

exothermic

18
Q

/\H < O (exothermic or endothermic)

A

endothermic

19
Q

heat transferred equation

A

q = Cs x M x /\T

20
Q

q > 0 (heat absorbed or released)

A

heat absorbed

21
Q

q < 0 (heat absorbed or released)

A

heat released

22
Q

q cal =

A

-q rxn

23
Q

equation for calculating temperature

A

T = H/S

24
Q

/\S’surr =

A

-q reversible/T

25
Q

/\S’sys =

A

q reversible/T

26
Q

equation for qcal

A

qcal = C’cal x /\T

27
Q

Equation for /\G (using /\G naught)

A

/\G = /\G naught - T(/\S)

28
Q

the more disordered/random a system is, the ______ its entropy

A

larger

29
Q

all spontaneous processes _____ entropy

A

increase

30
Q

phase change that increases entropy

A

s > l > g

31
Q

phase change that decreases entropy

A

g > l > s

32
Q

does heating or cooling increase entropy

A

heating

33
Q

does endothermic or exothermic processes increase entropy

A

endothermic

34
Q

when /\N’gas > 0 entropy increases or decreases

A

increases