Quiz on unit 9 must knows

#1 Which of the following terms matches the definition?

Ecell = E (cathode) - E (anode) IMPORTANT: if the reaction gets reversed (in order to balance, sometimes it will need to be reversed), the sign of the Ecell must switch, however if it gets multiplied (in order to balance) IT REMAINS THE SAME!!

anode Cell potential equation entropy 1st law of thermodynamics

#2 Which of the following terms matches the definition?

thermodynamically unfavorable

1st law of thermodynamics delta S = non-spontaneous is... cathode

#3 Which of the following terms matches the definition?

y + z --> Y+ + Z- (G<0)

overall cell reaction galvanic cell how K and G relate to each other is H < 0 and S > 0

#4 Which of the following terms matches the definition?

1 joule of work / coulomb of charge transferred J/C = units

Cell potential equation 2nd law of thermodynamics cell potential, Ecell, electromotive force (emf) entropy

#5 Which of the following definitions matches the term?

galvanic cell vs electrolytic cell

galvanic = anode is negative and cathode is positive electrolytic = anode is positive and cathode is negative the energy of a system related to changes in enthalpy and entropy, at a constant temperature. basically implies that the system is at 1 atm and using 1 M solutions. reduction happens, gaining electrons galvanic = anode is negative and cathode is positive electrolytic = anode is positive and cathode is negative

#6 Determine if the following combination is true or false.

oxidation half-reaction

x --> X+ + e-

True

False

#7 Determine if the following combination is true or false.

anode

the energy of a system related to changes in enthalpy and entropy, at a constant temperature. basically implies that the system is at 1 atm and using 1 M solutions.

True

False

#8 Determine if the following combination is true or false.

voltage equation

delta G and the energy of the product is lower than that of the reactants 1. G = negative = k>1; G = positive = k

True

False

#9 Determine if the following combination is true or false.

cathode

(sum of S products) - (sum of S reactants) DO NOT FORGET TO ACCOUNT FOR THE MOLES IN THE REACTION!!!

True

False

#10 Determine if the following combination is true or false.

galvanic cell

y + z --> Y+ + Z- (G<0)

True

False

Section 1: Multiple Choice questions

Ecell = E (cathode) - E (anode) IMPORTANT: if the reaction gets reversed (in order to balance, sometimes it will need to be reversed), the sign of the Ecell must switch, however if it gets multiplied (in order to balance) IT REMAINS THE SAME!!

thermodynamically unfavorable

y + z --> Y+ + Z- (G<0)

1 joule of work / coulomb of charge transferred J/C = units

galvanic cell vs electrolytic cell

Section 2: True/false questions

oxidation half-reaction

x --> X+ + e-

anode

the energy of a system related to changes in enthalpy and entropy, at a constant temperature. basically implies that the system is at 1 atm and using 1 M solutions.

voltage equation

delta G and the energy of the product is lower than that of the reactants 1. G = negative = k>1; G = positive = k

cathode

(sum of S products) - (sum of S reactants) DO NOT FORGET TO ACCOUNT FOR THE MOLES IN THE REACTION!!!

galvanic cell

y + z --> Y+ + Z- (G<0)

Triple-checked your answers?

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