A 100 ohms resistor carrying current of 1 Amp is maintained at a constant temperature of 30°C by a heat bath. What is the rate of entropy increase of the resistor?
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Q: For a reversible process, the entropy generation and thus the exergy destruction are zero? Explain.
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A: The expression for change in entropy is, ∆S=QT…
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Q: In an experiment, 200g of aluminum at 100°C is mixed with 50g of water at 20°C with the system…
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Q: A gaseous system undergoes a change in temperature and volume. What is the entropy change for a…
A: Say: ω = 1 ω' = 0.587
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A: Part ASolution:Entropy change will be given as:dS = QT - 1where, Q is the heat amount of…
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: S(B, T) ↑ (3) B₁ <B₂ B₂ T3 T₁ T Figure A1 Figure A1 shows the entropy S of a paramagnetic solid as a…
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Q: (a) Suppose a 500 resistor is immersed in an oil bath. The oil bath is kept at a constant…
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Q: A freezer is used to freeze 4.6 L of water completely into ice. The water and the freezer remain at…
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Q: A heat engine with efficiency 10 percent of a Carnot engine operating between a high temperature of…
A: Solution: Given: η1 = efficiency of heat engine = 10% of η2 η2 = efficiency of Carnot engine…
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 freezer is used to freeze 5.0 L of water completely into ice. The water and the freezer remain at…
A: The energy transferred from the water by heat can be obtained as Q=mwaterLf=ρVLf Substituting the…
Q: Pressure is applied isothermally to a container that holds a liquid. Assuming the liquid is…
A: The liquid is compressible.pressure is applied to this liquid isothermally, therefore T=const.It is…
Q: An engine absorbs three times as much heat as it discharges. The work done by the engine per cycle…
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Q: A large flask of water was put in contact with a heater, and 100 J of energy was transferred…
A: Given, A large flask of water was put in the contact with a heater, heat transfered to the water, Q…
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- every second at Yosemite park approximately 500m^3 of water falls a distance of 97m. what is the increase in entropy per second due to the falling water? Assume the mass of the suroundings is so great that its tempature and that of the water stays nearly constant at 20 degree celcius . Also assume a negligible amount of water evaporates.Which statement regarding entropy is false? A child builds a tower from a pile of blocks. The entropy of the blocks increases. A layer of salt then a layer of pepper are placed in a jar then shaken. The entropy of the salt and pepper increases. Gasoline is burned in a car engine to form exhaust. The entropy of the gasoline increases. A candle burns to heat the surrounding air. The entropy of the candle and surrounding air increases.A 0.50-kg piece of aluminum at 250 °C is dropped into 1.0 kg of water at 20 °C . After equilibrium is reached, what is the net entropy change of the system?
- If you are told that the entropy of a system is zero, what do you know about the system?The entropy of a reversible process is Tds = du + pdv Obtain an expression for the change of entropy as a function of cp, P and T.The temperature at the surface of the Sun is approximately 5,600 K, and the temperature at the surface of the Earth is approximately 291 K. What entropy change of the Universe occurs when 4.50 103 J of energy is transferred by radiation from the Sun to the Earth? ____________ J/K