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Ch.19 - Chemical Thermodynamics

Chapter 19, Problem 11a

Which of the following processes are spontaneous and which are nonspontaneous: (a) the ripening of a banana

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Hello, everyone in this video, we're trying to see if the process of when a mango ripens is a spontaneous or non spontaneous process. Just recall that what the definition of a spontaneous reaction means. This means that the reaction will occur naturally without any sort of intervention. So we're gonna say occurs naturally. Alright, so we can go ahead and think about a mango in your house, the fruit will ripen as time progresses. So there may be can be ways for the process of writing of a mango to go ahead and be sped up of some sort. But mango can definitely ripe in naturally without any sort of manipulation or um intervention. Therefore, the process of which a mango ripens is going to be spontaneous, because this happens naturally. This is going to be my final answer for this problem. Thank you all so much for our
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Isomers are molecules that have the same chemical formula but different arrangements of atoms, as shown here for two isomers of pentane, C5H12.

(b) Which isomer do you expect to have the higher standard molar entropy? Explain.

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Textbook Question

Consider a reaction A2(𝑔) + B2(𝑔) β‡Œ 2 AB(𝑔), atoms of A shown in red in the diagram and atoms of B shown in blue. (a) If 𝐾𝑐 = 1, which box represents the system at equilibrium?

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Textbook Question

Consider a reaction A2(𝑔) + B2(𝑔) β‡Œ 2 AB(𝑔), atoms of A shown in red in the diagram and atoms of B shown in blue. (b) If 𝐾𝑐 = 1, which box represents the system at 𝑄 < 𝐾𝑐?

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Textbook Question

Which of the following processes are spontaneous and which are nonspontaneous: (d) lightning

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Textbook Question

Which of the following processes are spontaneous and which are nonspontaneous: (e) formation of CH4 and O2 molecules from CO2 and H2O at room temperature and 1 atm of pressure?

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Textbook Question

Which of the following processes are spontaneous?

a. the melting of ice cubes at βˆ’10 Β°C and 1 atm pressure

b. separating a mixture of N2 and O2 into two separate samples, one that is pure N2 and one that is pure O2

c. alignment of iron filings in a magnetic field

d. the reaction of hydrogen gas with oxygen gas to form water vapor at room temperature

e. the dissolution of HCl(g) in water to form concentrated hydrochloric acid

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