If a 2 kg piece of lead at Tps = 100°C is dropped into a lake at T = 10°C, find the change of entropy of the universe.
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Q: A freezer is used to freeze 5.0 L of water completely into ice. The water and the freezer remain at…
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Q: A person with skin of surface area 1.85 m2 and temperature 30.0C is resting in an insulated room…
A: Given data A=1.85 m2TR=30°CTs=20°Cε=1
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 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: A cylinder of gas has a temperature of 32F. a) If 205J is added to the system at constant…
A: Given Gas is at T=32oF=273.15K a) The amount of heat added to the system is Q=205J So at a…
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- Suppose you put a cube of ice of mass 100 g into a glass of water at just above 0°C. When the ice melts, about 33 kJ of energy is absorbed from the surroundings as heat. What is the change in entropy of (a) the sample (the ice) and (b) the surroundings (the glass of water)?If you are told that the entropy of a system is zero, what do you know about the system?What would happen to the entropy of a system if you could increase the pressure without changing the temperature, volume, or number of particles?
- A large factory furnace maintained at 170 ∘C at its outer surface is wrapped in an insulating blanket of thermal conductivity 5.50×10−2 W/(m⋅K) which is thick enough that the outer surface of the insulation is at 43.0 ∘C while heat escapes from the furnace at a steady rate of 140 W for each square meter of surface area. By how much does each square meter of the furnace change the entropy of the factory every second?How much energy must be transferred as heat for a reversible isothermal expansion of an ideal gas at 132°C if the entropy of the gas increases by 46.0 KA parcel is lifted adiabatically from z = 0 to z = H. What is the change in entropy?