Exam 5 Flashcards

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1
Q

Q < K (favors products or reactants)

A

favors products

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2
Q

Q > K (favors products or reactants)

A

favors reactants

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3
Q

K changes with temp? (T/F)

A

T

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4
Q

when nGAS = 0

A

Kp and Kc are the same

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5
Q

if volume increases, pressure decreases, and

A

rxn shifts to more moles of gas

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6
Q

if volume decreases and pressure increases and

A

rxn shifts to less moles of gas

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7
Q

equation to find Kp

A

Kp = Kc(RT)^ngas

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8
Q

equation to find Kc

A

Kc = Kp(RT)^-ngas

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9
Q

equation of # of moles

A

n = m/Mm

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10
Q

bronsted lowry def

A

acid donates H+
bases accepts H+

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11
Q

Lewis definition

A

acid accepts a pair of e-
bases donates a pair of e-

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12
Q

7 strong acids

A

Hcl, Hbr., Hi, HNO3, HClO3, HClO4, H2SO4

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13
Q

equation for finding pH using h3o

A

ph=-log(H3O)

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14
Q

equation for ph

A

ph=pKa + log (A/HA-)

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15
Q

the _____ the bond the stronger the acid

A

weaker

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16
Q

the more polar the bond the ____ the acid

A

stronger

17
Q

H < O

A

Exothermic

18
Q

Ssystem =

A

Ssystem = qreversibl/T

19
Q

Suniv > 0

A

spontaneous

20
Q

factors that increase entropy

A

heating
s>l>g
ngas > 0
endothermic

21
Q

factors that decrease entropy

A

cooling
g>l>s
ngas<0
exothermic

22
Q

q =

A

q = cs(m)T

23
Q

qcal=

A

qcal=ccal x T

24
Q

w =

A

w = -pV

25
Q

E = (internal energy

A

E = q + w

26
Q

Gsystem < 0

A

spontaneous

27
Q

Gsystem > 0

A

nonspontaneous

28
Q

Grxn < 0

A

favors products

29
Q

Grxn > 0

A

favors reactants

30
Q

standard free energy (Gibbs)

A

Grxn = -RTlnK

31
Q

Gibbs free energy

A

Grxn = G(node) + RTlnQ