Ch 17 and Some Of Ch 6

Question 1

Second law of thermodynamics

Answer 1

Entropy of universe =entropy of system+entropy of surroundings

For spontaneous reaction delta S is positive

Question 2

Entropy of surroundings

Answer 2

-Hsystem/T

Question 3

Entropy of system

Answer 3

Products-reactants

Question 4

Any temp and high temps

Answer 4

S=+. S=+

H=- H=+

Question 5

No T

Answer 5

S=-

H=+

Question 6

Low temp

Answer 6

S=-

H=-

Question 7

S vapor

Answer 7

Hvap/TBp

Question 8

Initial pressure

Answer 8

(ni/V)(RT)

Question 9

Convert to Kp from Kc

Answer 9

Kp=Kc(RT)^delta n

Question 10

More negative G =

Answer 10

Spontaneous

K>1

Question 11

How to find entropy (S)

Answer 11

=KlnW
K=1.38x 10^-23
W=number or micro states

=H/T =(CsT)/(T)

=SrProducts-Srreactants