The entropy of mixing typically is the major energetic contributor leading to solvation of polymer. as...

The entropy of mixing typically is the major energetic contributor leading to solvation of polymer. as the molecular weight of polymer increases, the entropic term playes a diminishing role, Expline using the Flory Huggins equation?

Expert Solution

queen_honey_blossom answered 2 years ago

Calculate (a) the (molar) Gibbs energy of mixing, (b) the (molar) entropy of mixing when the two major components of air (nitrogen and oxygen) are mixed to form air.

Calculate (a) the (molar) Gibbs energy of mixing, (b) the (molar) entropy of mixing when the two major components of air (nitrogen and oxygen) are mixed to form air. The mole fractions of N2 and O2 are 0.78 and 0.22, respectively. Is the mixing spontaneous?

snowboards are typically made out of a thermosetting polymer (i.e. a three dimensionally connected glassy polymer)....

snowboards are typically made out of a thermosetting polymer (i.e. a three dimensionally connected glassy polymer). what type of mechanical behavior would you expect from that type of polymer and why do you suppose reinforcing the polymer with fiber would alleviate problems that might occur due to the mechanical behavior of the polymer?

14.) Carbon dioxide, which is recognized as the major contributor to global warming as a "greenhouse...

14.) Carbon dioxide, which is recognized as the major contributor to global warming as a "greenhouse gas," is formed when fossil fuels are combusted, as in electrical power plants fueled by coal, oil, or natural gas. One potential way to reduce the amount of CO2 added to the atmosphere is to store it as a compressed gas in underground formations. Consider a 1000-megawatt coal-fired power plant that produces about 7×106 tons of CO2 per year. 1 ton = 907.185 kg...

6. Air pollution problem. Consider an airshed in which there is one major contributor to air...

6. Air pollution problem. Consider an airshed in which there is one major contributor to air pollution--a cement-manufacturing plant whose annual production capacity is 2.500,000 barrels of cement. Figures are not available to determine whether the plant has been operating at capacity. Although the kilns are equipped with mechanical collectors for air pollution control, the plant still emits 2.0 lb of dust per barrel of cement produced. There are two types of electrostatic precipitators that can be installed to control...

Constants | Periodic Table Carbon dioxide, which is recognized as the major contributor to global warming...

Constants | Periodic Table Carbon dioxide, which is recognized as the major contributor to global warming as a "greenhouse gas," is formed when fossil fuels are combusted, as in electrical power plants fueled by coal, oil, or natural gas. One potential way to reduce the amount of CO2 added to the atmosphere is to store it as a compressed gas in underground formations. Consider a 1000-megawatt coal-fired power plant that produces about 5×106 tons of CO2 per year. Part A...

A stretched-out polymer has lower entropy than a contracted one (think back to the rubber band...

A stretched-out polymer has lower entropy than a contracted one (think back to the rubber band problem). Applying mechanical forces to a polymer stretches it out, and it is also more likely to react by breaking bonds along the polymer chain (compared to the contracted case). a. Draw the reaction energy profile for the zero-force and mechanically biased cases. b. Use the Arrhenius expression to explain why the mechanochemical bond breaking is faster

Answer and explain: 5. True or False: The entropy of mixing perfect gases is always positive....

Answer and explain: 5. True or False: The entropy of mixing perfect gases is always positive. 6. True or False: The chemical potential of pure liquid water at standard conditions is higher than the standard chemical potential of liquid water in an aqueous solution

Problem 1. Derive an expression for the mixing entropy ∆Smix of a ternary system. Simplify your...

Problem 1. Derive an expression for the mixing entropy ∆Smix of a ternary system. Simplify your result, writing it as the total number of particles N times a purely intensive function of the mole fractions of all three components.

Calculate the enthalpy, entropy, and Gibbs free energy of mixing when 1.00 mol hexane is mixed...

Calculate the enthalpy, entropy, and Gibbs free energy of mixing when 1.00 mol hexane is mixed with 1.00 mol heptane at 298 K. You may treat this solution as ideal. Sketch the plot of entropy of mixing vs. mole fraction, and then sketch another plot for entropy vs. mass fraction. Calculate the mass fractions of hexane and heptane that would provide the greatest entropy of mixing.

The lab name is Electrochemical Determination of entropy of mixing Explain briefly why complementary solutions were...

The lab name is Electrochemical Determination of entropy of mixing Explain briefly why complementary solutions were used in this experiment. How does this experimental design effectively simulate the hypothetical reversible mixing process discussed earlier in the notes( earlier in the notes I put reversible happen infinitesimally slow)? What is wrong with measuring the voltage of a cell containing only one solute component on each side (i.e., Fe(II) of a given molality on one side and Fe(III) with the same molality...

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