The spontaneity of a process depends on several factors; one of the several factors is entropy. When the change in entropy of a process is negative, the process is said to be spontaneous. Concept introduction: Entropy is referred to as the 'state of disorder' of a system. Also, entropy is a measure of the energy of atoms and molecules in a process and can be defined in terms of statistical probabilities of a system or in terms of the other thermodynamic quantities. When the change in entropy of a process is negative, the process is said to be spontaneous due to increase randomness of the system. When the change in entropy of a process is positive, the process is said to be non-spontaneous due to decrease in randomness of the system. The change in entropy occurs during phase transitions, precipitation reactions etc. The change in entropy is defined as the difference between the entropies of the final and initial states: Δ S = S f − S i . Given: Endothermic decomposition of A B 2 molecules To determine: To determine the sign (+,-, or 0) of Δ S o for the reaction. To determine with explanation if the reaction is more likely to be spontaneous at high temperature or at low temperatures.

Question

Want to see the full answer?

Answer 1

Question

Chapter 17, Problem 17.14A

Interpretation Introduction

Interpretation:

The spontaneity of a process depends on several factors; one of the several factors is entropy. When the change in entropy of a process is negative, the process is said to be spontaneous.

Concept introduction:

Entropy is referred to as the 'state of disorder' of a system. Also, entropy is a measure of the energy of atoms and molecules in a process and can be defined in terms of statistical probabilities of a system or in terms of the other thermodynamic quantities.
When the change in entropy of a process is negative, the process is said to be spontaneous due to increase randomness of the system. When the change in entropy of a process is positive, the process is said to be non-spontaneous due to decrease in randomness of the system. The change in entropy occurs during phase transitions, precipitation reactions etc.
The change in entropy is defined as the difference between the entropies of the final and initial states:

ΔS = Sf − Si.

Given:

Endothermic decomposition of AB2 molecules

To determine:

To determine the sign (+,-, or 0) of ΔSo
for the reaction.
To determine with explanation if the reaction is more likely to be spontaneous at high temperature or at low temperatures.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

we were assigned to dilute 900ppm in to 18ppm by using only 250ml vol flask. firstly we did calc and convert 900ppm to 0.9 ppm to dilute in 1 liter. to begin the experiment we took 0,225g of kmno4 and dissolved in to 250 vol flask. then further we took 10 ml sample sol and dissolved in to 100 ml vol flask and put it in to a spectrometer and got value of 0.145A . upon further calc we got v2 as 50ml . need to find DF, % error (expval and accptVal), molarity, molality. please write the whole report. thank you The format, tables, introduction, procedure and observation, result, calculations, discussion and conclusion

Q5. Predict the organic product(s) for the following transformations. If no reaction will take place (or the reaction is not synthetically useful), write "N.R.". Determine what type of transition state is present for each reaction (think Hammond Postulate). I Br₂ CH3 F2, light CH3 Heat CH3 F₂ Heat Br2, light 12, light CH3 Cl2, light No

None