Calculate the change in entropy (in J/K) of 250 g of water heated slowly from 20.0°C to 80.0°C. (Suggestion: Note that dQ = mc dT.)

Q: , Problem 14: A pot containing 620 g of water is placed on the stove and is slowly heated from 18°C…

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Q: Find the total change in entropy if 2kg2kg of ice at 0.00∘C0.00∘C is mixed with 25.0kg25.0kg of…

A: Ice of mass m1=2kg at temperature T1=0 C=273 K is mixed with water of mass m2=25kg at temperature…

Q: 21.11 Starting at standard conditions, 3.0 kg of an ideal gas (M= 28 kg/kmol) is isothermally…

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Q: On a winter day, a certain house loses 1.12 x 108 J of heat to the outside. What is the total change…

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Q: What is the decrease in entropy (in J/K) of 26.5 g of water that condenses on a bathroom mirror at a…

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Q: Water is slowly warmed from 17.0°C to 85.0°C. If the mass of the water is 320 g, what is the water's…

A: Solution: Given that: Mass of the water is: m=320g=0.32 kg Temperatures are:…

Q: A pot containing 790 g of water is placed on the stove and is slowly heated from 34°C to 79°C.…

A: We know that change of entropy is,∆S = ms ln(T2/T1)where,m = mass in kg s= specific heat of water =…

Q: A container with 41 g of a certain liquid (c = 4171 J/kg · °C, Lv=2224 kJ/kg) at 22 °C is heated up…

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Q: An ice tray contains 360 g of liquid water at 0°C. Calculate the change in entropy of the water as…

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Q: A freezer is used to freeze 1.5 L of water completely into ice. The water and the freezer remain at…

A: The expression for change in entropy is, ∆S=QT…

Q: We mix 5 mole of oxygen with 5 mole of nitrogen at 300 K and atmospheric pressure. Calculate the…

A: Given, The number of moles of oxygen no=5 moles. The number of moles of nitrogen nn=5 moles The…

Q: A 2.50 mol sample of an ideal gas expands reversibly and isothermally at 360 K until its volume is…

A: Number of mole of ideal gas is n=2.50 mol Temperature is T=360 K Gas expanded reversibly and…

Q: What is the decrease in entropy (in J/K) of 28.5 g of water that condenses on a bathroom mirror at a…

A: The temperature of a bathroom is, T=35 °C=308 K The mass of water is, m=28.5 g=0.0285 kg The amount…

Q: 48. On a hot summer day, 4.00×10° Jof heat transfer into a parked car takes place, increasing its…

A: Given  Heat transfer Q=4×106 J T1=35 T2=45

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: What is the change in entropy of 12.1 g of steam at 100°C as it condenses to liquid water at 100°C?…

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Q: What is the change in entropy of 420 gg of steam at 100 ∘C∘C when it is condensed to water at 100…

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Q: . One mole of an ideal gas expands isothermally at T = 20°C from 1.1 m³ to 2.1 m³. The gas constant…

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Q: 7 kg of water at 55oC is added to a large quantity of ice at 0oC resulting in ice-water. What is the…

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Q: What is the entropy change of 15 g of steam at 100°C when it condenses to water at the same…

A: Part ASolution:Entropy change will be given as:dS = QT           - 1where, Q is the heat amount of…

Q: (a) In reaching equilibrium, how much heat transfer occurs from 1.2 kg of water at 40°C when it is…

A: Entropy increases in a closed system, such as the universe. But in parts of the universe, for…

Q: A boulder with a mass of 75.0 kg, starting from rest, falls a distance of 20.0 m into a shallow…

A: Mass M = 75.0 kg Temperature T = 301 k Distance h= 20.0 m

Q: You have two heat sinks. One is held at a constant temperature at 20 degrees C, and the other is at…

A: Given, Temperature of first heat sink T1 = 20° C = 20 + 273 K = 293 K Temperature of second heat…

Q: A cylinder-piston system with 700 g of water at 0C is placed in a refrigerator. Water slowly freezes…

A: Given data The mass of the water is mw = 700 g = 0.7 kg The initial temperature of the water is Ti_w…

Q: A 6.25-kg block of ice is placed on a concrete floor which has a constant temperature of 25.5˚C. The…

A: Entropy change of a system at constant temperature is given as,  ∆ S = ∆ Q / T  Where ∆ Q is the…

Q: 1. One mole of an ideal gas expands isothermally at T=20°C from 1.2 m³ to 2.2 m³. The gas constant…

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Q: What is the change in entropy of 1.00 kg of liquid water at 100.°C as it changes to steam at 100.°C?

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Q: Three moles of an ideal gas undergo a reversible isothermal compression at 20.0C. During this…

A: Given data T=20°C=293 KW=-1850 J

Q: A 500-g chocolate bar starts to melt at 45OC. What is the change in entropy?

A: The change in entropy △S is related to temperature T by, △S=QT. Here, Q is the heat energy required…

Q: n 14 g ice cube at -15°C is put into a Thermos flask containing 130 cm³ of water at 17°C. By how…

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Q: Air is compressed steadily by a 5-kW compressor from 100 kPa and 17C to 600 kPa and 167C at a rate…

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Q: An ice tray contains 500g of water. Calculate the change in entropy of the water as it freezes…

A: Solution: Given Data: Mass of the water, m = 500g = 0.5kg, The temperature of the system during the…

Q: A 0.50-kg piece of aluminum at 250 °C is dropped into 1.0 kg of water at 20 °C . After equilibrium…

A: Given: Mass of the aluminum piece = 0.50 Kg Weight of the water = 1 Kg Temperature = 200C

Q: An ice cube at 0.0°C is slowly melting. What is the change in the ice cube’s entropy for each 5.80 g…

A: The objective of the question is to calculate the change in entropy of the ice cube as it melts.…

Q: What is the decrease in entropy of 44.8 g of water that condenses on a bathroom mirror at a…

A: We know that∆S=∆QT                   1Here∆S=Change in entropy∆Q=Heat transferT=Temperature∆Q=mLv…

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

A: Given data:  Mass (m) = 500 g = 0.500 kg Temperature (T) = 45°C Latent heat of fusion of chocolate…

Q: 0.589 kg of water is initially at 13.3° C. If the temperature of the water is increased to 24.5° C,…

A: Write the expression for the change in heat energy. dQ=mcdT Here, m is the mass, c is the specific…

Q: Suppose that 1.00 kg of water at 0°C is mixed with an equal mass of water at 100°C. After…

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Q: A rigid box contains 0.9 mol of an ideal monoatomic gas. Heat is added to the gas and its…

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Q: What is the decrease in entropy (in J/K) of 30.0 g of water that condenses on a bathroom mirror at a…

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Q: 30 grams of ice at -5 Celsius melt while being left at room temperature of 28 Celsius.  After…

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Q: One kilogram of water is heated from 0°C to 100°C. Solve for the change in entropy of the water.

A: Given: specific heat of the water, = 4180 J/kg k   T1 = 00 c = 273 + 0=273 k    T2 = 1000 c = 273…