Explain what is the entropy change

Assignment Help Chemistry
Reference no: EM13340555

Solid CO2 (dry ice) sublimes at 195 K and its heat of sublimation ?Hsubl = 25.2 kJ/mol. A block of dry ice with a mass of 32.1 g sublimes. What is the entropy change, ?S, of the CO2? (Enter your answer in J/K).

Reference no: EM13340555

Questions Cloud

Differences between the way gaap and ifrs operate : Currently, the United States is working towards a convergence with International Financial Reporting Standards (IFRS). There are certain similarities and differences between the way GAAP and IFRS operate.
Grouping principles employed by designers : Name four different principles of grouping and give a good example for each one. Using examples from your own experience, where and how are these grouping principles employed by designers.
Computation for the operating cycle performance : Computation for the operating cycle performance for Raytheon Corp - complete performance measure EVA, Operating Leverage and ROI.
Different visual processing pathways : Milner and Goodale distinguish 2 different visual processing pathways. Please name each one and describe the type of information that is processed in each. Provide descriptions of how researchers (not necessarily Milner and Goodale themselves) have b..
Explain what is the entropy change : Solid CO2 (dry ice) sublimes at 195 K and its heat of sublimation ?Hsubl = 25.2 kJ/mol. A block of dry ice with a mass of 32.1 g sublimes. What is the entropy change, ?S, of the CO2? (Enter your answer in J/K).
Find out which has the larger molar entropy : For each of the following pairs of substances, determine which has the larger molar entropy at 298 K: [ (A) Cl2(g) or (B) Br2(l) ] [ (C) Fe(s) or (D) Ni(s) ] [ (E) C2H4(g) or (F) C2H6(g) ] [ (G) CCl4(g) or (H) CH4(g) ] [ (I) MgO(s) or (J) HgO(s) ]..
Find the angular resonant frequency of oscillations : Consider a series LRC circuit with R=21 ?, L=0.29 H and C=0.4 µF. The current is 14 mA amplitude at 1.6 kHz. Find the angular resonant frequency of oscillations
How long are the ropes that support the swing : On a swing, a 37 kg girl undergoes small-amplitude oscillations with period 4.1 s. How long are the ropes that support the swing
Define high pressure will cause the solid to become liquid : Ice floats on water. For most other substances however, the solid sinks in the liquid.Classify each of these statements as true for water, or true for most other substances.

Reviews

Write a Review

Chemistry Questions & Answers

  Explain born-haber cycle to calculate the lattice energy

Use the Born-Haber cycle to calculate the lattice energy of LiCl(s) given the following data: ?H(sublimation) Li = 155.2 kJ/mol; I1 (Li) = 520 kJ/mol; Bond energy (Cl Cl) = 242.8 kJ/mol; EA (Cl) = 348 kJ/mol; ?Hf (LiCl(s)) = -408.8 kJ/mol. A

  Compute the ratio of ionized to unionized drug forms

Calculate the ratio of ionized to unionized drug forms that would exist in the plasma at physiological pH (7.4). What is the percent ionized to unionized

  State the ph of the two equivalence points

the pH of the two equivalence points and the volume

  Evaluate the rate expression for the reaction

Given the initial rate data for the reaction A+B->C, determine the rate expression for the reaction. [A], M [B], M delta[C]/delta t (initial) M/s

  Explain dilute to mark with water and mix

dilute to mark with water and mix. (You will need the extra volume of this most concentrated solution for further studies.) Record your actual standard concentrations accounting for the dilution as Cstd1, Cstd2, Cstd3, and Cstd4, respectively.

  Explain the mass spectrum of an organic compound

The mass spectrum of an organic compound shows the relative abundances of M to be 83.79% and M 1 to be 13.59%. Assuming the peaks are caused by 12C and 13C isotopes,

  Explain 1-naphthylamine hydrochloride with sodium hydroxide

Indicate which layer( aqueous or organic) each component in the reaction will mainly reside in ( for both products and reactants ) for all the following three reactions: (1)Show the reaction of 1-naphthylamine hydrochloride with sodium hydroxide.

  Compute the mean activity coefficient for hcl

For cell with hydrogen and silver-silver-chloride electrodes, the cell potential was measured at 0.342V at 298K. Calculate the mean activity coefficient for HCL if the molality of the solution is 0.2 m.

  Find out the final temperature of the mixture

30.0 mL of pure water at 280. K is mixed with 50.0 mL of pure water at 348 K. What is the final temperature of the mixture? Ignore significant figures for this problem.

  Explain the product and balanced equation of cuso4

what doe the product and balanced equation of NaOH+NH4HCO3 come out to be. Also what would the product and balanced equation of CuSO4 + a nail be and NH4HCO3 + heat be

  What will be the temperature of the sample

A 3.00-liter sample of gas is at 417 Kelvin and 0.65 atmosphere. If the volume is decreased to 1.50 liters and the pressure of the gas is increased to 1.95 atmospheres, what will be the temperature of the sample?

  Define what is the molar mass of the unknown monoprotic acid

a 0.8054 g sample of an unkown monoprotic acid requires 44.30 mL of the same solution to reach the same endpoint. what is the molar mass of the unknown monoprotic acid

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd