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  1. AP Chemistry
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Applications of Thermodynamics

Question 1
college-boardChemistryAPExam Style
1 mark

Considering a non-spontaneous electrochemical cell reaction, which change would make the process spontaneous at standard conditions?

Question 2
college-boardChemistryAPExam Style
1 mark

A chemist finds that adding inert helium gas into a sealed container conducting reversible synthesis-decomposition involving hydrogen iodide (HI_{(g)}⇌H_{(g)} + I_{(g)}) causes no visible effect on measured proportionate amounts each category has adjusted across newly established equilibriums afterward - why?

Question 3
college-boardChemistryAPExam Style
1 mark

Which quantity represents the number of moles of solute per liter of solution?

Question 4
college-boardChemistryAPExam Style
1 mark

How does coupling a non-spontaneous reaction (ΔG > 0) with a spontaneous one (ΔG < 0) in biological systems affect free energy change for overall processes?

Question 5
college-boardChemistryAPExam Style
1 mark

According to the relationship between ΔG°, ΔG, and K, what happens when ΔG° increases?

Question 6
college-boardChemistryAPExam Style
1 mark

Which of the following is true about the relationship between the change in free energy (ΔG) and the temperature dependence of the equilibrium constant (K)?

Question 7
college-boardChemistryAPExam Style
1 mark

What happens to the spontaneity of a reaction when the Gibbs free energy (ΔG) is negative?

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Question 8
college-boardChemistryAPExam Style
1 mark

If two moles of A reacts with one mole of B, what is the mole ratio of A to B used in calculations from their balanced equation, A + B → AB?

Question 9
college-boardChemistryAPExam Style
1 mark

The equilibrium constant expression Kp applies to reactions involving what states of matter?

Question 10
college-boardChemistryAPExam Style
1 mark

Given a reaction mechanism with two steps, the first being slow and the second fast, which step would impact the overall free energy of activation for the process?