Please answer #9 8. The third law of thermodynamics claims that:ANone of the other The entropy of the OThe internal energy DThe entropy of apure perfect solid atOK is nulfof a system isconservedanswersuniverse can neverdecrease9. Using the data below, what can you tell about the spontaneity of a reaction:20z) + CH4() --→ 2 H;O(g) + CO2(g)H;=-802 KJ/mol S°= -5.2 J/(mol-K)]will be spontaneousabove 1 x 10°KOwill be spontaneousbelow 1x 10°K|None of the otheranswers

The reaction is – 2O2g + CH4g →2H2O g + CO2g

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Chemistry

Please answer #9

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter10: Entropy And The Second Law Of Thermodynamics

Section: Chapter Questions

Problem 10.90PAE: A key component in many chemical engineering designs is the separation of mixtures of chemicals. (a)...

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What is the second law of thermodynamics? For any process, there are four possible sign combinations for Ssys and Ssurr. Which sign combination(s) always give a spontaneous process? Which sign combination(s) always give a non-spontaneous process? Which sign combination(s) may or may not give a spontaneous process?
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In the thermodynamic definition of a spontaneous process, why is it important that the phrase “continuous intervention” be used rather than just “intervention?”
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10.69 If a sample of air were separated into nitrogen and oxygen molecules (ignoring other gases present), what would be the sign of for this process? Explain your answer. The next four questions relate to the following paragraph [Frank L. Lambert, Journal of Chemical Education, 76(10), 1999, 1385]. "The movement of macro objects from one location to another by an external agent involves no change in the objects' physical (thermodynamic) entropy. The agent of movement undergoes a thermodynamic entropy increase in the process."
What types of experiments can be carried out to determine whether a reaction is spontaneous? Does spontaneity have any relationship to the final equilibrium position of a reaction? Explain.
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On the basis of your experience, predict which of the following reactions are spontaneous. (a) CO2(s)CO2(g) at 25°C (b) NaCl(s)NaCl(l) at 25°C (c) 2NaCl(s)2Na(s)+Cl2(g) (d) CO2(g)C(s)+O2(g)