4.0 kg of water at 25 ∘C is mixed with 4.0 kg of water at 60...
4.0 kg of water at 25 ∘C is mixed with 4.0 kg of water at 60 ∘C in a well-insulated container.
Estimate the net change in entropy of the system.
Homework Answers
4.0 kg of water at 39 degree C is mixed with 4.0 kg of water at...
4.0 kg of water at 39 degree C is mixed with 4.0 kg of water at 52 degree C in a well-insulated container. Part A Estimate the net change in entropy of the system. Express your answer to two significant figures and include the appropriate units. Delta S = _______
75 g of water at 69 ∘C are mixed with 75 g of water at 20 ∘C...
75 g of water at 69 ∘C are mixed with 75 g of water at 20 ∘C in a thermally-insulated container. Calculate the change in entropy, ΔS. I know the answer is ΔS = 1.87 J/K, but I cannot remember what I did to get this last week. Thank you!
One container holds 0.10 kg of water at 75 ∘C and is warmed to 95 ∘C...
One container holds 0.10 kg of water at 75 ∘C and is warmed to 95 ∘C by heating from contact with the other container. The other container, also holding 0.10 kg of water, cools from 25 ∘C to 5.0 ∘C. Specific heat of water is 4180 J/kg⋅∘C. Estimate the total change in entropy of two containers of water using the actual temperatures to determine the heat transferred to each container and the average temperatures to determine the change in entropy....
In the mixing device the slurry (mixture) of ice and water at temperature 0°C is mixed...
In the mixing device the slurry (mixture) of ice and water at temperature 0°C is mixed with water at temperature 20 C. The flow rate of the slurry (water + ice) is 2 kg/s and flow rate of the warm water is 4 kg/s. (a) Determine the mass flow rate of the ice, if the outlet temperature is 1°C and system is perfectly insulated. (b) Determine entropy generation rate in the perfectly insulated system. Specific heat of water is 4.19...
One container holds 0.10 kg of water at 80 ∘C and is warmed to 100 ∘C...
One container holds 0.10 kg of water at 80 ∘C and is warmed to 100 ∘C by heating from contact with the other container. The other container, also holding 0.10 kg of water, cools from 35 ∘C to 15 ∘C. Specific heat of water is 4180 J/kg⋅∘C. Estimate the total change in entropy of two containers of water using the actual temperatures to determine the heat transferred to each container and the average temperatures to determine the change in entropy....
An ice cube of mass 500 g at 0 °C is dropped into an insulated container...
An ice cube of mass 500 g at 0 °C is dropped into an insulated container of 1.0 kg of water that initially is at room temperature (25 °C), and eventually the system reaches equilibrium. The insulator is not perfect, so 20 kJ of heat flows from the room into the water during the process. 3. a. Calculate the entropy increase in the ice that melts into water. b. Calculate the entropy loss of the water that cools down. c....
Constants A 3.0-kg piece of aluminum at 28.4 °C is placed in 1.0 kg of water...
Constants A 3.0-kg piece of aluminum at 28.4 °C is placed in 1.0 kg of water in a Styrofoam container at room temperature (20.0 °C). Part A Estimate the net change in entropy of the system. Express your answer to two significant figures and include the appropriate units. uÅ ? a xa Хь X•10n x AS = Value Units O The unit you entered is not recognized. Review a list of acceptable units. No credit lost. Try again.
5 kg of water at 2 ° C, 2 kg of ice at 0 ° C and 5.5 kg of water vapor at 120 ° C and 1.5 bar are...
5 kg of water at 2 ° C, 2 kg of ice at 0 ° C and 5.5 kg of water vapor at 120 ° C and 1.5 bar are mixed in a fixed-volume container. What is the final temperature of the mixture? How much water vapor condenses? Suppose that the volume of the container is constant with a value equal to the initial volume of the water vapor and that the container is insulated. Suppose it is a discontinuous...
Of ice at -S °C is added to 40 kg of water initially at 20 °C. Assume that the container is well ...
of ice at -S °C is added to 40 kg of water initially at 20 °C. Assume that the container is well insulated. (a) Find the final equilibrium temperature. (5 points) 0b) Caleulate the change in internal energy of the 40 kg water when thermal equilberium is established. (5 points) (c) If a 3 kg piece of copper at 30°C is also added to the original system( Le. system with ice d wat an (7 points) er at their initial...
A combination of 0.250 kg of water at 20.0°C, 0.400 kg of aluminum at 26.0°C, and...
A combination of 0.250 kg of water at 20.0°C, 0.400 kg of aluminum at 26.0°C, and 0.100 kg of copper at 100°C is mixed in an insulated container and allowed to come to thermal equilibrium. Ignore any energy transfer to or from the container. What is the final temperature of the mixture?
4.0 kg of water at 39 degree C is mixed with 4.0 kg of water at 52 degree C in a well-insulated container. Part A Estimate the net change in entropy of the system. Express your answer to two significant figures and include the appropriate units. Delta S = _______
In the mixing device the slurry (mixture) of ice and water at temperature 0°C is mixed with water at temperature 20 C. The flow rate of the slurry (water + ice) is 2 kg/s and flow rate of the warm water is 4 kg/s. (a) Determine the mass flow rate of the ice, if the outlet temperature is 1°C and system is perfectly insulated. (b) Determine entropy generation rate in the perfectly insulated system. Specific heat of water is 4.19...
An ice cube of mass 500 g at 0 °C is dropped into an insulated container of 1.0 kg of water that initially is at room temperature (25 °C), and eventually the system reaches equilibrium. The insulator is not perfect, so 20 kJ of heat flows from the room into the water during the process. 3. a. Calculate the entropy increase in the ice that melts into water. b. Calculate the entropy loss of the water that cools down. c....
Constants A 3.0-kg piece of aluminum at 28.4 °C is placed in 1.0 kg of water in a Styrofoam container at room temperature (20.0 °C). Part A Estimate the net change in entropy of the system. Express your answer to two significant figures and include the appropriate units. uÅ ? a xa Хь X•10n x AS = Value Units O The unit you entered is not recognized. Review a list of acceptable units. No credit lost. Try again.
of ice at -S °C is added to 40 kg of water initially at 20 °C. Assume that the container is well insulated. (a) Find the final equilibrium temperature. (5 points) 0b) Caleulate the change in internal energy of the 40 kg water when thermal equilberium is established. (5 points) (c) If a 3 kg piece of copper at 30°C is also added to the original system( Le. system with ice d wat an (7 points) er at their initial...
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