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3. Entropy of physical systems (a) Consider two interacting systems A and B. Calculate the number of microstates an...
Let's say we have 4 small interacting systems. I've already calculated the number of microstates for...
Let's say we have 4 small interacting systems. I've already calculated the number of microstates for each independent system which are as follows; Ohm_1 = 6 Times 10^5, Ohm_2 = 3 Times 10^6, Ohm_3 = 5 Times 10^5, and Ohm_4 = 8 Times 10^6. a) When the 4 systems are interacting what is the total number of states (microstates, Ohm_T) accessible? b) What are S_1, S_2, S_3, and S_4 (entropy of each system independently) in terms of Boltzmann's Constant, k?...
Please help with detailed explanation 8) Phase change (homework) Calculate the entropy change in the universe...
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...
Problem 4: [12 points] There are two systems, each consisting of a large number of interacting at...
Problem 4: [12 points] There are two systems, each consisting of a large number of interacting atoms. For system 1 the entropy as a function of energy is S,-AE1/2, while for system 2 we have S,-BEV4 Here A and B are constants. The two systems are now placed in thermal contact, and allowed to reach equilibrium. a) [6 points Evauate E2 as a function of A, B, and E1 b) [6 points] What is the heat capacity of system 1...
Need help with nmbr 5 parts A through D and number 6. PLEASE SHOW WORK! 5....
Need help with nmbr 5 parts A through D and number 6.
PLEASE SHOW WORK!
5. Ice of mass m 200 g at a temperature of- 2'C is placed in a calorimeter that contains tea at 25'C. All ice melts and the final equilibrium temperature of the tea is 10°C. The specific heat of ice is 2108 J/kgK, the latent heat of fusion for ice is 2, 334 x 10 J/kg, and the specific heat of tea is 4180 J/kgk....
Question 17 Incorrect Mark 0.00 out of 1.00 Flag question Calculate the increase of entropy (in...
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...
2) Deriving Expressions for Entropy Generation In this problem you will use your combined 1 and 2...
2) Deriving Expressions for Entropy Generation In this problem you will use your combined 1 and 2"d Law knowledge to derive two expressions, given in lecture without proof, for the rate of entropy generation in different systems. a) A resistance heater is operating steadily in a room filled with ideal gas. The room can be approximated as air-tight, but it exchanges heat with the surroundings to maintain a inside the room, where I and Vare constant temperature Troom. Show hurinside...
1. Calculate the heat required to melt 5.4 g of naphthalene, C.H. AH, -18.8kJ /mol 2....
1. Calculate the heat required to melt 5.4 g of naphthalene, C.H. AH, -18.8kJ /mol 2. Ice at -10.0° C is combined with 50.0g of water at 75.0°C. Calculate the grams of ice present initially if the entire mixture comes to a final temperature of 25.0°C after the ice melts. Specific heat of water is 4.18 J/gºC, AH, = 334J/g Specific heat of water is 4.18 J/gºC, AH, = 3341/8 2. Consider the phase diagram of compound Z below: a....
CHAPTER 7. HEAT TRANSFER WITH CHANGE OF PHASE 7.9 Problems 7.9.1 Freezing of a Solution Consider ...
CHAPTER 7. HEAT TRANSFER WITH CHANGE OF PHASE 7.9 Problems 7.9.1 Freezing of a Solution Consider freezing of grape juice. Assume that the initial weight percentage of water in grape juice is 85% and the effective molecular weight of solute is 183.61 . I) Predict the percent of initial water frozen in grape juice when the temperature has been reduced to -6°C. 2) -15°C. 3) Would you juice of, let's say, 50% water? Why? Repeat the calculations in 1 when...
Please answer all, this is for physical chemistry. Thank you T-Mobile 11:14 AM X Problem Set...
Please answer all, this is for physical chemistry. Thank you
T-Mobile 11:14 AM X Problem Set 2_Spring 2018.pdf 1- One gram of liquid bemzene (CH)is bumed in a bomb calorimeter. The temperature before ignition was 20826 C,and the temperature afher the combustion was 25.000 "C. This was an adiabatic calorimeter (constant volame). The heat capacity of the bomb, the water around it, and the contents of the bomb before the combustion was 10,000 JK. Calculate the ??-foe C.H.1) at 298...
Refer to Figure 3 (below), depicting a regenerative Rankine cycle with a closed feedwater heater (CFWH) when considering the following system description. Saturated liquid water at a pressure of P b...
Refer to Figure 3 (below), depicting a regenerative Rankine cycle with a closed feedwater heater (CFWH) when considering the following system description. Saturated liquid water at a pressure of P before entering the CFWH. 12 kPa is pumped to a pressure of Pi-5 MPa After leaving the CFWH as a saturated liquid, the water continues to a Steam Generator which heats the water to a temperature of Ts 600°C. This superheated steam is used to drive a Turbine. A quantity...
Let's say we have 4 small interacting systems. I've already calculated the number of microstates for each independent system which are as follows; Ohm_1 = 6 Times 10^5, Ohm_2 = 3 Times 10^6, Ohm_3 = 5 Times 10^5, and Ohm_4 = 8 Times 10^6. a) When the 4 systems are interacting what is the total number of states (microstates, Ohm_T) accessible? b) What are S_1, S_2, S_3, and S_4 (entropy of each system independently) in terms of Boltzmann's Constant, k?...
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...
Problem 4: [12 points] There are two systems, each consisting of a large number of interacting atoms. For system 1 the entropy as a function of energy is S,-AE1/2, while for system 2 we have S,-BEV4 Here A and B are constants. The two systems are now placed in thermal contact, and allowed to reach equilibrium. a) [6 points Evauate E2 as a function of A, B, and E1 b) [6 points] What is the heat capacity of system 1...
Need help with nmbr 5 parts A through D and number 6.
PLEASE SHOW WORK!
5. Ice of mass m 200 g at a temperature of- 2'C is placed in a calorimeter that contains tea at 25'C. All ice melts and the final equilibrium temperature of the tea is 10°C. The specific heat of ice is 2108 J/kgK, the latent heat of fusion for ice is 2, 334 x 10 J/kg, and the specific heat of tea is 4180 J/kgk....
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...
2) Deriving Expressions for Entropy Generation In this problem you will use your combined 1 and 2"d Law knowledge to derive two expressions, given in lecture without proof, for the rate of entropy generation in different systems. a) A resistance heater is operating steadily in a room filled with ideal gas. The room can be approximated as air-tight, but it exchanges heat with the surroundings to maintain a inside the room, where I and Vare constant temperature Troom. Show hurinside...
1. Calculate the heat required to melt 5.4 g of naphthalene, C.H. AH, -18.8kJ /mol 2. Ice at -10.0° C is combined with 50.0g of water at 75.0°C. Calculate the grams of ice present initially if the entire mixture comes to a final temperature of 25.0°C after the ice melts. Specific heat of water is 4.18 J/gºC, AH, = 334J/g Specific heat of water is 4.18 J/gºC, AH, = 3341/8 2. Consider the phase diagram of compound Z below: a....
CHAPTER 7. HEAT TRANSFER WITH CHANGE OF PHASE 7.9 Problems 7.9.1 Freezing of a Solution Consider freezing of grape juice. Assume that the initial weight percentage of water in grape juice is 85% and the effective molecular weight of solute is 183.61 . I) Predict the percent of initial water frozen in grape juice when the temperature has been reduced to -6°C. 2) -15°C. 3) Would you juice of, let's say, 50% water? Why? Repeat the calculations in 1 when...
Please answer all, this is for physical chemistry. Thank you
T-Mobile 11:14 AM X Problem Set 2_Spring 2018.pdf 1- One gram of liquid bemzene (CH)is bumed in a bomb calorimeter. The temperature before ignition was 20826 C,and the temperature afher the combustion was 25.000 "C. This was an adiabatic calorimeter (constant volame). The heat capacity of the bomb, the water around it, and the contents of the bomb before the combustion was 10,000 JK. Calculate the ??-foe C.H.1) at 298...
Refer to Figure 3 (below), depicting a regenerative Rankine cycle with a closed feedwater heater (CFWH) when considering the following system description. Saturated liquid water at a pressure of P before entering the CFWH. 12 kPa is pumped to a pressure of Pi-5 MPa After leaving the CFWH as a saturated liquid, the water continues to a Steam Generator which heats the water to a temperature of Ts 600°C. This superheated steam is used to drive a Turbine. A quantity...
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