8. Suppose the 1,000 kJ is needed to raise the 12 kg of now gaseous nitrogen N, from boiling temperature, -196 °C, to room temperature, 20°C. What is the entropy change of the nitrogen gas during the warming process, assuming the process is reversible? Answers include: 5,400 J/K 8,200 J/K 19,400 J/K 11,360 J/K
Q: Q= 50232 . (b) What is the change in entropy due to this heat transfer? AS = 10.95 total J/K (C) How…
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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…
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Q: The latent heat of vaporization of water is given approximately by L₁ = -2,400Tc + 2,500,000, where…
A: Solution: We have given that The latent heat of vaporization of water Lv=-2400Tc + 25,00,000 where…
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Q: 15 A mixture of 1773 g of water and 227 g of ice is in an initial equilibrium state at 0.000°C. The…
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Q: A 700.0 g block ice at -20 °C is brought into thermal contact with 10.0 g of water at 0 °C in an…
A: Since the system is adiabatic (no heat exchange with the surroundings) and at constant pressure, the…
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Q: Determine the change in (extensive) entropy if 5 kg of water are boiled (isothermally) at 100 °C.…
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Q: À 1.20 mol of an ideal gas at 350 K undergoes a free adiabatic expansion from V1 = 12.3 L to V2=…
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Q: Prove that the "cycle" consisting of only two adiabatic steps (reversible expansion and then…
A: To prove that the "cycle" consisting of only two adiabatic steps (reversible expansion and then…
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 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…
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Q: Ninety grams of water at 36°C is heated until it becomes vapor at 100°C. Calculate the change in…
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Q: 30 grams of ice at -5 Celsius melt while being left at room temperature of 28 Celsius. After…
A: Given data The mass of the ice is m = 30 grams The initial temperature of ice is Ti-ice = -5⁰C = 268…
Q: A 1 kg chunk of ice at 273 K and 1 atmosphere melts completely in water at 273 K. What is its change…
A: The problem is asking for the change in entropy when a 1 kg chunk of ice at 273 K melts completely…
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Q: 5. If the change in system entropy for a given process is -8.3 J/(mole.K): (A) What can be known…
A: Given, change in system entropy for a given process is -8.3 J/(mole. K) ∆Ssys = -8.3 Jmol K We know…
Q: #2. Suppose 2.35 moles of an ideal gas expands to twice its volume isothermally at 298 A) How much…
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- 9:EAI OEO"llzain IQ نقطنان )2( Initially 5 mol of an ideal gas, with CV,m = 12.5 J K-1 mol-1, are at a volume of 5 dm3 and a temperature of 300 K. If the gas is heated to 373 K and the volume changed to 10 dm3, what is the entropy change 42.4 J.mol-1.K-1 24.4 J.K-1 O 24.4 J.mol-1.K-1 42.4 J.K-1 (O öslg äbäi Predict which of the following substances has the highest entropy value at 25°C Mgo (s) O Снзон (1) со (д) CaCO3 H20 (I)A heat engine that operates between two heat reservoirs at 900 ° C and 0 ° C, respectively, it has an efficiency of 35% and receives 21 kJ. If the tank temperature low is the environment, determine its entropy variation. a) -50 J / K b) 296.7 J / K c) 50 J / K d) ∞H4
- What is the minimum change of entropy that occurs in 0.200 kg of ice at 273 K when 7.40 x 104 J of heat is added so that it melts to water? O 2.71 x 10² J/K 3.69 x 10-³ J/K 7.4 x 104 J/K 3.11 x 10² J/K O 3.22 x 10-³ J/KQ2. What is the total change in entropy when 5.0 kg Of water at 15'℃ is brought into contact with a large heat reservoir at 1000C, after the water reached the temperature of the reservoir - -4186 J/kg,K 18. O53. What is the decrease in entropy of 25.0 g of water that condenses on a bathroom mirror at a temperature of 35.0° C, assuming no change in temperature and given the latent heat of vaporization to be 2450 kJ/kg?
- 29) Calculate the change in entropy (AS) for the process of freezing 2 kg of liquid methane at 182°C to solid methane at -182°C. Heat of melting/freezing for methane is 59 kJ/kg. A: 0.94 kJ/K B: -0.94 kJ/K C: 1.3 kJ/K D: -6.0 kJ/K E: - 1.3 kJ/K Considering justHeat flows into 1kg of ice at 0°C, melting it, then warming the liquid up to 100°C, then boiling the liquid to vapor. 1) How much heat does it take to melt 1kg of ice, starting at 0°C? Q= Submit 2) How much does the entropy increase when the ice melts? Sliquid-Sice= J/K Submit 3) How much does the entropy increase when the 100°C water boils? J/K Submit 4) For the liquid water, the specific heat is 4184 J/kg-K, nearly constant over the 0°C to 100°C range. How much does the entropy increase in the warming from 0°C to 100°C? J/K Submit Help 5) By how much does the dimensionless entropy, S/k, increase per molecule of ice as it melts. Use 0.018 kg/mole as the molecular weight. SubmitCalculate the entropy of rolling a die three times such that the sum of numbers for the first two observations is divisible by the number obtained third time. (a) 6.47 x103 J/K (b) 2.03 m -kg-s.K (c) 2.81 m² - kg -s. K (d) 2.81x10-3 J/K