4) ORDER AND PROBABILITY INFORMATION AND ENTROPY - CHOOSE THE CORRECT ANSWER

Which one of the following correctly indicates the relationship
between the entropy of a system and the number of different
arrangements, W, in the system?
a) S= kW
b) S=kInW
c) S= k/W
d) S= Wk
e) S = W/k
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Which one of the following correctly indicates the relationship
between the entropy of a system and the number of different
arrangements, W, in the system?
a) S= kW
b) S=kInW
c) S= k/W
d) S= Wk
e) S = W/k
S = klnW
Which of the following involves a decrease in entropy?
a) the sublimation of carbon dioxide
b) the dissolution of NaCl in water
c) the decomposition of N2O4 to NO2
d) the evaporation of ethanol
e) the freezing of liquid water into ice
the freezing of liquid water into ice
All of the following statements concerning entropy are true EXCEPT
a) entropy is zero for elements under standard conditions
b) entropy is a state function
c) a positive change in entropy denotes a change toward greater disorder
d) entropy values are greater than or equal to zero
e) the entropy of a substance in the gas phase is greater than the solid phase
entropy values are greater than or equal to zero
All of the following processes lead to an increase in entropy EXCEPT
a) increasing the temperature of a gas
b) freezing a liquid
c) evaporating a liquid
d) forming mixtures from pure substances
e) chemical reactions that increase the number of moles of gas
freezing a liquid
The second law of thermodynamics states that the total entropy of a closed system always increases dS>0, with dS=0 only in the special case of
a) an irreversible process
b) an adiabatic process
c) a reversible process
d) an isothermal process
a reversible process
Entropy is a statistical measure of
a) disorder of a system
b) order of a system
c) heat of a system
disorder of a system
If a chemical reaction is spontaneous, the total entropy of the chemical system and its surroundings
a) increases only if the reaction is exothermic
b) increases only if the reaction is endothermic
c) always increases
always increases
Suppose we have four distinguishable particles in one side of a two-compartment container. How many possible ways are there to distribute them between the two sides of the container? Consider container compartments as indistinguishable.
a) 8
b) 11
c) 6
d) 16
11
In the previous question, how many possible ways are there to distribute the particles between the two distinguishable sides of the container?
a) 8
b) 11
c) 6
d) 16
11
The maximum information the student gets from a grade Pass/Fail will be:
a) 1 bit
b) 2 bits
c) 3 bits
1 bit
Naturally occurring spontaneous irreversible processes, such as biological processes, always result in a) a decrease increase in entropy b) an increase in entropy c) an increase in enthalpy d) a decrease in enthalpyan increase in entropyInformation is a form of energy which is called a) internal energy b) positive entropy c) negentropy d) positive enthalpynegentropyWhen a gas is in a thermal equilibrium state A, it has a definite entropy SA, which is a function of n, V, U. Due to the removal of a separator between the gas and the rest of the container, the system will irreversibly reach a new equilibrium state B, which has entropy SB. The second law of thermodynamics says: a) SB = SA b) SB < SA c) SB > SASB=SALet us consider a crystal containing eight atoms at three different temperatures. If enough energy is added to the crystal to start just one of the atoms vibrating, the thermodynamic probability W will be a)1 b) 8 c) 0 d) 368Entropy is a function of a) mathematical probability b) thermodynamic probability c) number of macrostatesthermodynamic probability