Ans 1
At first determine the number of microstates
Then determine the entropy
Calculate the entropy for a system consisting of 10 particles distributed over four energy levels with...
Model - Entropy as a State Function Entropy, S, as with all other state functions like internal energy, E, and enthalpy, H, is a function of the state of a system. Because measuring the absolute state of a system more difficult than measuring the changes in its states, it is the change in entropy, ΔS, in which we will be interested. This means the only aspects that will interest us will be the difference in the final and initial entropies...
Calculate the change in entropy that occurs in the system when 49.0 g of acetone (C3H6O) freezes at its melting point (-94.8∘C). ΔH∘fus = 5.69 kJ/mol. Answer in J/K
TC01E13 Calculate 9 (heat) for a system consisting of 29.5 g of gold (Cp = 0.129 J/K/g) when its temperature was raised from 26.2 °C to 94.7 °C. Select one: O a. 261 J O b. 261 kJ/mol C. 15665 J d. 1300 J e. 1300 J/mol
Consider a system of distinguishable particles having only three energy levels (0, 1 and 2) equally separated by an energy , delta e, which is equal to the value of kT at 25 K. Calculate at 25 K: (a) the ratios of populations n1/n0 and n2/n0 (b) the molecular partition function, q (c) the molar internal energy, E = U - U(0), in J/mol (d) the molar entropy, S, in J/(K mol) (e) the molar constant volume heat capacity, Cv,...
TC01E13 Calculate 9 (heat) for a system consisting of 29.5 g of gold (Cp = 0.129 J/K/g) when its temperature was raised from 26.2 °C to 94.7 °C. Select one O a. 261 J O b. 261 kJ/mol o C. 15665 J O d. 1300 J o e. 1300 J/mol
Calculate the change in entropy that occurs in the system when 3.90 mole of diethyl ether (C4H6O) condenses from a gas to a liquid at its normal boiling point (34.6∘C). ΔHvap = 26.5 kJ/mol. Answer in J/K
3. Calculate the change in entropy when 50.0 g of ethanol at 50.0 °C is poured into 70.0 g of ethanol at 10.0°C in an isolated vessel given that Cp.m is 111.5 J/mol K. a) Determine the final temperature of the system. (ANS: 299.9 K) b) Calculate the entropy change for the process (ANS: AS = 273.8 kJ/mole)
Please help with detailed explanation 8) Phase change (homework) Calculate the entropy change in the universe when a 15.0 g ice cube melts (0°C) in your hand (37°C). Given: AfusH = 6.01 x 103 J/mol 9) Phase change at Boiling point Predict the normal boiling point in °C) of sodium, given that the entropy of 1 mol Na (l) changes by +84.8 J/K when it forms a vapour at 1 bar pressure, with ApapH = +98.0 kJ/mol Remember: The liquid...
Question 17 Incorrect Mark 0.00 out of 1.00 Flag question Calculate the increase of entropy (in J/K) when 76 g of ice melts at 0 °C and 1 atm. (The heat of fusion for ice is 6,000 J/mol.) Answer: 208.4 Question 18 Incorrect Mark 0.00 out of 1.00 Calculate the change in entropy (in J/K) when 29.1 g of water is heated from 27.1 °C to 76.5 °C at 1 atm. (The specific heat is 4.184 J/(g-K).) Flag question Notice...
(References TUTOR Entropy Change: Predict Sign, Calculate from Standard Entropy Values Consider the reaction CO(g) + H20(1)—CO2(g) + H2(g) Based upon the stoichiometry of the reaction the sign of AS rxn should be Using standard thermodynamic data, calculate AS rxn at 25°C. positive negative ASDXD J/K mol Submit Show Approach Show Tutor Steps Submit Answer Retry Entire Group 9 more group attempts remaining Selected Thermodynamic Data at 298.15 Kelvin Aluminum, Barium, Beryllium, Bromine, Cadmium, Calcium, Carbon, Chlorine, Chromium, Copper, Fluorine,...