A Styrofoam cup holding 120 g of hot water at 86°C cools to room temperature, 23.0°C. What is the change in entropy of the room? Neglect the specific heat of the cup and any change in temperature of the room.

Q: This is a symbolic version of Problem 52. When a metal bar is temporarily connected between a hot…

A: When there is change in heat Q at a constant absolute temperature T, the entropy changes as,

Q: If I know that the change in entropy of a system where heat was added is 30 J/K, and that the…

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Q: A heat source generates heat at a rate of 55.0 W (1 W=1 J/s)55.0 W (1 W=1 J/s). How much entropy…

A: Given;-  A heat source generates heat at a rate of  P = 55 W = 55 J/sec  The surrounding temperature…

Q: A Styrofoam cup holding 125 g of hot water at 100°C cools to room temperature, 20.0°C. What is the…

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Q: Suppose you toss 100 coins starting with 60 heads and 40 tails, and you get the most likely result,…

A: The change in entropy is given by, ΔS=Sf-SiΔS=klnWf-klnWi For the case of n particles and two cells,…

Q: A Styrofoam cup holding 145 g of hot water at 1.00 ✕ 102°C cools to room temperature, 25.0°C. What…

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Q: Eight hundred seventy joules of heat are removed from a heat reservoir at a temperature of 870 K.…

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Q: A Styrofoam cup holding 135 g of hot water at 1.00 ✕ 102°C cools to room temperature, 27.0°C. What…

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Q: A Styrofoam cup holding 145 g of hot water at 1.00 x 102°C cools to room temperature, 18.0°C. What…

A: Given Data: Mass of hot water is m=145 g=0.145 kg Initial temperature is T1=1.00×102 °C=100 °C…

Q: A Styrofoam cup holding 127 g of hot water at 1.00 x 102°C cools to room temperature, 24.0°C. What…

A: Given:Mass of hot water in cup (m) = 127 gTemp of hot water in cup (Ti) = 100 °CRoom temperature…

Q: Junyoung and Enkhtur are experimenting with an ideal gas. in their experiment, a 573-g quantity of…

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Q: In an experiment, 190 g of aluminum (with a specific heat of 900 J/kg-K) at 53.0°C is mixed with…

A: as per our guideline we will solve only first question for you to get remaining question solved…

Q: Every second at Niagara Falls, approximately 5.00 x 103 m3 of water falls a distance of 50.0 m. What…

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Q: QUESTION 12 80 g of ice at 0.00°c absorbs just enough heat to completely melt. What is the change in…

A: Mass of the ice (m)= 80 g Temperature (T)= 0 ° C = 273 K Latent heat of fusion (Lf)= 334 J/g Let ∆ S…

Q: In every cycle of its operation, a Carnot engine takes in 640 J of heat from a reservoir at 380 K…

A: Given, heat taken from reservoir, Q = 640 J temperature of reservoir, TH = 380 K TC = 300 K

Q: A litre of water at 20 degrees C is placed in a fridge at 5 degrees C. Calculate the change in…

A: When an object or a body loses heat, its temperature falls and the heat loss is  mathematically…

Q: A 0.8-m3 rigid tank contains carbon dioxide (CO2) gas at 250 K and 100 kPa. A 500-W electric…

A: The mass of carbon dioxide can be obtained as Now, since the mass and volume remain constant, the…

Q: Must asnwer all 3 subparts a,b,c else will downvote 1. An ideal gas sample initially at 25°C and…

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Q: A Styrofoam cup holding 144 g of hot water at 1.00 ✕ 102°C cools to room temperature, 25.0°C. What…

A: Given: The mass of hot water is m=144 g. The temperature of hot water is T=100 oC. The room…

Q: A litre of water at 20∘C is placed in a fridge at 5∘C. Calculate the change in entropy of the water…

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Q: A 100,000-kg iceberg at −5°C breaks away from the polar ice shelf and floats away into the ocean, at…

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Q: J of heat flows from a hot reservoir at 310 degrees celsius to a cold reservoir at 220 degrees…

A: Given:- 600 J of heat flows from a hot reservoir at 310 degrees celsius to a cold reservoir at 220…

Q: The surface of the Sun is approximately at 5700 K, and the temperature of the earth's surface is…

A: The entropy change is the difference between the entropy change in the surface of Earth and entropy…

Q: Two hundred joules of heat are removed from a heat reservoir at a temperature of 200 K. What is the…

A: Given data: The heat removed from a reservoir is: Q = 200 J The temperature at which heat is…

Q: A block of ice at 273 K is put in thermal contact with a container of steam at 373 K, converting…

A: GivenTemperature of ice Tice = 273 KMass of ice converted in water m = 25g = 0.025 kgTemperature of…

Q: This is a symbolic version of Problem 54. When a metal bar is temporarily connected between a hot…

A: Step 1When there is change in heat Q at constant absolute temperature, then entropy changes asQ is…

Q: A 65-g ice cube is initially at 0.0°C. (a) Find the change in entropy of the cube after it melts…

A: Part A:

Q: A sophomore with nothing better to do adds heat to 0.500 kgkg of ice at 0 ∘C∘C until it is all…

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Q: 3 moles of O2 at 1 atm and 500K expands isothermally to 0.3 m3. What is the change in entropy of the…

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Q: A 4.50-kg block of ice at 0.00℃ falls into the ocean and melts. The average temperature of the ocean…

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Q: You are holding a 500-g dark chocolate bar, and then the chocolate starts to melt at 45 degrees C.…

A: Given Data Mass of the chocolate bar is m=500 g=500 g×1 kg1000 g=0.500 kg Melting temperature of the…

Q: (Use Cw = 4190 J/kg.0C, CL = 129 J/kg.°C, LVH20 = 2260 kJ/kg) * A cold block of ice is placed in a…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: "In heating 250 cubic cm of water, you place an electric element in the cup. As the water…

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Q: A quantity of an ideal gas in an isolated system expanded isothermally and reversibly at 400 K from…

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Q: A 2.00-L container has a center partition that divides it into two equal parts as shown below. The…

A: As the partition is removed:Vf=2Viso    VfVi=2Entropy change is given by:∆S=nRlnVfVi

Q: A 2.00-L container has a center partition that divides it into two equal parts as shown below. The…

A: Increase in entropy after mixing will be,

Q: Liquid nitrogen, with a latent heat of fusion of LF 25.3 x 10' J/kg, solidifies at a temperature of…

A: Write the given values with the suitable variables. LF=25.3×103 J/kgT=63 Km=1.50 kg Here, LF, T, and…