2.0 kg of water at 36 ∘C is mixed with 2.0 kg of water at 45 ∘C in a well-insulated container. Estimate the net change in entropy of the system.
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.
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 = _______
Room 90 m 12°C 1) A container filled with 45 kg of liquid water at 95°C is placed in a 90-m room that is initially at 12°C. Thermal equilibrium is established after a while as a result of heat transfer between the water and the air in the room. Using constant specific heats, determine (a) the final equilibrium temperature, (b) the amount of heat transfer between the water and the air in the room, and (c) the entropy generation. Assume...
A container filled with 45 kg of liquid water at 95°C is placed in a 90 m3 room that is initially at 12°C. Thermal equilibrium is established after a while as a result of heat transfer between the water and the air in the room. Using constant specific heats at room temperature, determine a) the final equilibrium temperature b) the amount of heat transfer between the water and the air in the room c) the entropy generation /3] I /8]...
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!
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...
What is the change in entropy when 1 kg of water at 0°C is mixed with 3 kg of water at 20°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....
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....
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.