Air is compressed from an initial state of 100 kPa and 178C to a final state of 600 kPa and 578C. Determine the entropy change of air during this compression process by using (a) property values from the air table and (b) average specific heats.

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: A heat source generates heat at a rate of 55.0 W (1 W=1 J/s)55.0 W (1 W=1 J/s). How much entropy…

A: Given;-  A heat source generates heat at a rate of  P = 55 W = 55 J/sec  The surrounding temperature…

Q: We have n moles of an ideal gas that expands reversibly through an isothermal process, when doubling…

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Q: A completely reversible heat pump produces heat at a rate of 300 kW to warm a house maintained at…

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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 Styrofoam cup holding 127 g of hot water at 1.00 x 102°C cools to room temperature, 24.0°C. What…

A: Given:Mass of hot water in cup (m) = 127 gTemp of hot water in cup (Ti) = 100 °CRoom temperature…

Q: A 1.5-m3 insulated rigid tank contains 2.7 kg of carbon dioxide at 100 kPa. Now paddle-wheel work is…

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Q: A body at 583.37 K undergoes a reversible isothermal process. The heat energy removed in the process…

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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…

A: Given: mass of ice , m =0.050kg= 50 g The heat required to melt ice, Q=mLf where Lf=Latent Heat of…

Q: An ideal gas undergoes a reversible isothermal expansion at 77.0 C, increasing its volume from 1.30…

A: The expression for the entropy will be,

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

A: The expression for the entropy will be,

Q: What is the change in entropy of helium gas with total mass 0.140 kg at the normal boiling point of…

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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: What is the entropy change of a gas in J/K (to 2 decimal points) when one mole of a perfect gas…

A: According to question--- Given value--- number of mole = 1 initial volume = 4.87 m3 . final volume…

Q: A 5 kg block of ice initially at 268.15 K is placed in thermal contact with a very large reservoir…

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Q: A diatomic ideal gas is brought from an initial equilibrium state at p1 = 0.50 atm and T1 = 300 K to…

A: The initial pressure,   The final pressure,

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: Calculate the total change in entropy AS if m¡ = 4.95 kg of water at T = 31.9 °C is mixed with m2 =…

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Q: What is the entropy change involved in transforming 5 g of ice at 0C and 1 atm pressure into vapor…

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Q: A 1.10-kg iron horseshoe is taken from a forge at 880°C and dropped into 3.00 kg of water at 15.0°C.…

A: As no energy is lost, so…

Q: The surface of the Sun is approximately at 5.70 x 103 K , and the temperature of the Earth’s surface…

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Q: kg Oxygen at the rate of 1.36 undergoes a reversible isobaric process during which min KJ „Vi= 0.5;…

A: Since you have asked multiple subparts, only the first sub-part is solved for you. If you want any…

Q: A 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: For the expansion of an ideal gas into a vacuum (system) which of the following will lead to the…

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Q: A mass of 25 lbm of helium undergoes a process from an initial state of 50 ft3/lbm and 60F to a…

A: Given: mass (m) = 25 lb initial temperature (T1) = 600 F =5200 R initial state(μ1) = 50 ft3/lbm…

Q: 10^9 J of heat is transferred into the engine, at a temperature of 575 K? (a) What is the work…

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Q: What is the change in entropy of 1.00 m3 of water at 0 oC when it is frozen to ice at 0 oC

A: Change in entropy is given by ∆S=mLTCal/°C mass of 1 m^3 of water is 1000 kg. L For ice = 80…

Q: An insulated rigid tank is divided into two equal parts by a partition. Initially, one part contains…

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Q: An 8.0 g ice cube at -10˚C is put into a Thermos flask containing 110 cm3 of water at 15˚C. By how…

A: Given that:Volume of water, Vw=110 cm3Mass of water, mw=110 cm3 × 1 g/ cm3=110g= 0.11 kgMass of ice,…

Q: The heat is transferred to a rigid container from a store of 800K hot reservoir to a 300K cold…

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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…

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Q: The difference in entropy AS=Sg-SA for two states A and B of a system can be computed by AS=[dQ/T…

A: We know that there is always increase in the entropy of the universe. But for irreversible process…

Q: There are 2 kg of gas with R = 400 J/kg- oK and k = 1.25 that undergo a nonflow constant volume…

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Q: Suppose we place 47 g of ice at 273 K in contact with a heat reservoir at 309K. Heat energy…

A: Given: Mass of ice, m = 47 g = 0.047 kg Temperature of ice, TI = 273 K Temperature of heat…

Q: When a system is adiabatic, what can be said about the entropy change of the substance in the…

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Q: When 2.1 kg of water at 12.3 °C is mixed with 3.7 kg of water at 39.7 °C in a well-insulated…

A: Given data: Mass of the water, m1=2.1 kg Temperature, T1=12.3C = 12.3 + 273 K∘ Mass of the water,…

Q: Heat in the amount of 100 kJ is transferred directly from a hot reservoir at 1200 K to a cold…

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Q: If a 25 kg block of ice melts into liquid water at 0 degrees Celsius, what is the entropy change of…

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Q: On a hot summer day, 2.00 x 10° J of heat transfer into a parked car takes place, increasing its…

A: Given: Amount of heat transferred (Q) = 2 x 106 J Change in temperature (T) = 44.4 - 35.5 = 8.9 K or…

Q: An athlete whose mass is 70.0 kg drinks 16.0 ounces (454 g) of refrigerated water. The water is at a…

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Q: Energy can be removed from water as heat at and even below the normal freezing point (0.0 C at…

A: We know, Consider three reversible processes here in which super cooled water drop starts at state…

Q: True or False: The entropy change in an adiabatic process must be zero because Q = 0.

A: The statement is False because entropy change is not always zero in adiabatic process.

Q: Suppose 5 mol of nitrogen gas is confined to the left side of a container. You open the stopcock,…

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Q: On a hot summer day, 2.00 x 10° J of heat transfer into a parked car takes place, increasing its…

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Q: The heat engine operates between temperatures of 320 K and 610 K. In one cycle, the machine takes…

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