Heat of amount 250 J is removed from a heat reservoir at a temperature of 270 K. What is the entropy change of the reservoir? Hint   ΔS=ΔS=Incorrect J/KJ/K. (Use the sign to indicate whether entropy of reservoir increases or decreases.)

Q: 170 g of water at 105°C is converted to steam. What is the entropy change of the water that is now…

A: latent heat of boiling water = 2256 KJ/kg  = 2256 J/g mass = 170 g Heat required to change the state…

Q: When 100g of copper cools down from 100 °C to 20 °C, specific heat of copper is 385 J/kg °C , what…

A: Given: The mass of the copper is 100 g. The initial temperature is 100oC. The final temperature is…

Q: Suppose 1.99 kg of water at 16.6°C is mixed with 1.36 kg of water at 79°C. After equilib- rium is…

A: Data Given.  m1 = 1.99 kg  T1 = 16.6°C = ( 273 + 16.6 ) K = 289.6 K  m2 = 1.36 kg T2 = 79°C = ( 273…

Q: Wood burns at a temperature of approximately 500. °C. One cord of seasoned (dry) firewood releases…

A: This problem can be solved using the formula for change in entropy in a process.

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: Humans cool off by perspiring; the evaporating sweat removes heat from the body. If the skin…

A: The objective of the question is to calculate the entropy change of the universe due to the…

Q: A container with a total volume of 2.77 L is divided in half so that there are two compartments of…

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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: A Styrofoam cup holding 130 g of hot water at 97°C cools to room temperature, 23.0°C. What is the…

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Q: If you add 400 J of heat to a system so that the final temperature of the system is 200 K, what is…

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Q: On a hot summer day, 4.00×106 J of heat transfer into a parked car takes place, increasing its…

A: Change in entropy is given by the formula: ∆S=QTwhere,∆S is change in entropyQ is heat transferT is…

Q: a kilogram of water at 0c is heated to 50c. compute change in entropy. assume that the specific heat…

A: The change in the entropy is called by, ∆S=mCpln(T2T1).........(1) Given: Mass m=1kg specific heat…

Q: A heat engine absorbs 2500 J of heat at 250°C and expels 2000 J at a temperature of 50°C. The change…

A: Given: Heat absorbed at T1=250°C is Q1=2500 J Heat expelled at T2=50°C is Q2=2000 J

Q: A 12 g ice cube at -13 °C is placed in a lake whose temperature is 19 °C. Calculate the change in…

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Q: The molar heat capacities of gases are not perfectly constant, as we've assumed, but increase slowly…

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Q: What is the entropy S of this system at a given temperature T, asT→∞, and T→0. We expect the entropy…

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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: On a hot summer day, 3.73  106 J of heat transfer into a parked car takes place, increasing its…

A: Given:  Heat exchanged, dQ=3.73×106 J Initial temperature, Ti=31.2°C Final temperature, Tf=50.6°C…

Q: bring about a 7.7 J/K increase in the entropy

A: The amount of energy that would have to be transferred to a room temperature environment to bring…

Q: Methane is heated in a steady-flow process at approximately atmospheric pressure. 1000 kJ of heat is…

A: Since you have been posted multiple questions. SO we are solving only first question for you. If you…

Q: A 68.7-g ice cube is initially at 0.0°C. (a) Find the change in entropy of the cube after it melts…

A: The given data are: m=68.7 g=0.0687 kgLf=3.33×105 J/kgT=0° C=273 K Here, m denotes the mass, T…

Q: When 0.150 kg of steam at 100°C condenses to water at 100°C, what is the change in entropy of the…

A: Given: The mass of the steam is 0.15 kg. The temperature of the steam is 100oC. The latent heat of…

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: One container holds 0.10 kg of water at 80 C and is warmed to 100 C by heating from contact with the…

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Q: Give a derivation of the ideal gas law in two dimensions, using dU=TdS+ydA where A is the area and y…

A: The equation you provided, , relates the change in internal energy (dU) of a system to its change in…

Q: The temperature at the surface of the Sun is approximately 5,450 K, and the temperature at the…

A: The temperature of the Sun Ts = 5450 K The temperature of the Earth Te = 291 K   Energy transferred…

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

A: Given   n1 = numbers of hydrogen gas moles  n2 = no of oxygen gas moles  n1 = 0.067  n2 = 0.067

Q: 170 g of water at 105°C is converted to steam. What is the entropy change of the water that is now…

A: The expression for find change in entropy is ∆s=mLvT

Q: On a winter day, a certain house loses 5.20 x 10° J of heat from the warm 25°C interior to the cold…

A: As per Bartleby rules, we are to answer the first three sub-parts of a question when specific…

Q: The temperature at the surface of the Sun is approximately 5,100 K, and the temperature at the…

A: temperature of surface of sun(TS)=5100 K Temperature of surface of earth(TE)=291K Energy(Q)=4.50 X…

Q: If 100 J of heat is added to a system so that the final temperature of the system is 400 K, what is…

A: Given: 100J of heat added to the system             Q = 100J             change in temperature is…

Q: Homework 6 Problem 4:   A mass m of water is heated reversibly from temperature T1 to T2 at a…

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Q: On a cold day, 17400 J of heat leaks out of a house. The inside temperature is 24.0° C, and the…

A: Given Data: The amount of heat leaks is, Q=17400 J The inside temperature of the house is, Th=24°C…

Q: A 67.5-kg person typically eats about 2250 kcal per day, 21.0% of which goes to mechanical energy…

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Q: A 9.50-mol sample of H2 gas is contained in the left side of the container shown below, which has…

A: Here given  9.50 mole of sample H2 gas in left side.We have to calculate the entropy when valve is…

Q: A heat engine whose thermal efficiency is 35 percent uses a hot reservoir at 1100 R and a cold…

A: Given,

Q: How much heat energy is needed to change the entropy of a macrostate from 10.00 J/K to 10.01 J/K in…

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Q: A 77.5-g ice cube is initially at 0.0°C. (a) Find the change in entropy of the cube after it melts…

A: Scenario - A particular amount of ice cube is melted due to which entropy of system changes. Given :…

Q: A 49.6 g block of copper whose temperature is 492 K is placed in an insulating box with a 107 g…

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Q: What is the change in entropy of the ice when a 0.050-kg ice cube at 0°C melts? The latent heat of…

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Q: It takes about 335 J to melt one gram of ice. During the melting, the temperature stays constant.…

A: Given Data: Standard Data:

Q: a) Find the internal energy change in a system consisting of one mol of a monoatomic ideal gas…

A: The energy change is 3a(15v^4)/8

Q: 150 g liquid water at 80.0°C is placed in an insulated flask. A 12.0 g ice cube at 0°C is added to…

A: Given values: Mass of the water, mw=150 gTemperature of the water, Tw=80°C=353 KMass of ice, mi=12…