A beaker of water sits in the sun until it reaches an equilibrium temperature of30°C.The beaker is made of 100 g of aluminum and contains 180 g of water. In an attempt to cool this system, a small block of ice at 0°C is added to the water. a. Determine the exact mass of ice needed to melt (giving up its latent heat of fusion) and bring the water and beaker temperature down to 0°C. b. If the ice block has a mass of 100 g, determine the final temperature of the system. If it turns out that Tf = 0°C, determine how much ice remains unmelted. c. Repeat your calculations for 50 g of ice.

Q: Use the Ideal Gas Law to show how pressure and temperature are related in the case of two footballs…

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Q: In the following conditions; determine its properties: a. P=2.0 MPa, x=90% b. T=2000C and x=80%

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Q: mass of the copper?

A: GIVEN- Heat (q) = 1386J T1= 20 deg.c T2= 80 deg.c Copper heat capacity (C) = 0.385 J/g ° C   To…

Q: One kg of helium is isothermally expanded from 800 kPa to 300 kPa at 125oC. Calculate the work [kJ]…

A: Given     Pressure, P1 = 800 kPa                     P2 = 300 kPa Temperature, T = 125oC…

Q: Robert Matthew Van Winkle takes 1 kg of ice and dumps it into 1 kg of water and, when equilibrium is…

A: mass of ice, mi=1 kgmass of water.mw=1 kgFinal mass, m=2 kgInitial temperature of water, Tw=0o C

Q: PROBLEM 18: Nitrogen gas in confined in a room at 30°C and 150 kPa. Determine the weight of nitrogen…

A: Given data:- Nitrogen gas Temperature=30°C Pressure =150 KPa. The room size= 6 m × 8 m × 3 m. To…

Q: Define the Specific gravities of some substances at 0°C?

A: For defining the specific gravity we have to know the values for density of standard fluids or…

Q: A 30.0-g ice cube floats in 212 g of water in a 100-g copper cup; all are at a temperature of 0°C. A…

A: Given data: The mass of the ice cube is mice = 30 g. The mass of the water is mw = 212 g. The mass…

Q: A piston-cylinder set up for an experiment has 30L (50% liquid, 50% vapor by volume) of water inside…

A: Write the given data. V1=30 Lx=0.5P1=300 kPaV2=2V1T2=150 °C

Q: An aluminum can of mass 0.11 kg contains water at 19.2 degrees Celsius. Iron pellets with a total…

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Q: What is the phase description of water at 110°C and 600 kPa?

A: Solution: Given Data: The temperature of the water is: T=110o C The pressure of the water is: P=600…

Q: e volume of a container holding 609.5 moles of an ideal gas at 519.85°C and a pressure of 53550 Pa?

A: Given:n=609.5 molesT=519.85°C =792.85 KP=53550 Pa

Q: A cylinder that has a 41.5-cm radius and is 50.0 cm deep is filled with air at 29.0°C and 1.00 atm…

A: Calculate the area of the piston. A=πr2 Here, A is the area of the piston, and r is the radius of…

Q: An ideal gas is enclosed in a constant volume container at a pressure of 0.7 atm and an initial…

A: Write the pressures and corresponding temperatures of an ideal gas.   P1=0.7 atmT1=100+273=373…

Q: Butane, with MW=58g/mol, is a type of hydrocarbon commonly used as fuel for portable stoves The gas…

A: Given: Molar weight of the butane: →w=58 g/mol Initial volume of the container: →V=20 L=0.02 m3…

Q: Water, with a mass of 285 21.62°C, is heated at con The water is completely w Calculate the heat…

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Q: SOD-liter tank contains a saturated mixture of steam and water. at 300°C. Determine (a) the mass of…

A: Given:T=300°C

Q: Determine the MW and specific heat ratio of a gas whose Cv=1.386 kJ/kg.K and R= 0.485 kJ/Kg.K…

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Q: An aluminum cup contains 225 g of water and a 40-g copper stirrer, all at 27°C. A 481-g sample of…

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Q: Water at 50°C and 1 atm pressure is heated to 100°C at constant pressure. Using coefficient of…

A:

Q: A 10-g ice cube at -10°C is dropped into 40 g of water at 30°C. After enough time has passed to…

A: Given data The mass of the ice is mi=10 g= 0.01 kg. The initial temperature of the ice is…

Q: (a.) What is the relationship between power, P (in watts) and work, W (in joules)? What is the…

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Q: A cylinder which is in a horizontal position contains an unknown noble gas at 42100 Pa and is sealed…

A: Calculate the work done in isobaric process. dW = P*dV dW =P*(Pi*r2l)…

Q: Steam at 100°C is used to warm 350 g of water contained in a 300 g aluminum container.  The initial…

A: The mass of the steam.Given:The mass of the water is .The mass of the aluminum is .The initial…

Q: A cylinder initially has a volume of 0.025 m3 that contains 1.5 moles of gas at a temperature of 0°C…

A: Given: V1=0.025 m3n=1.5 molesT=273 KP=1.35 atm=136.8 kPaR= 8.21 J/K.mole

Q: Refrigeration tubing is 2 inches in diameter and 10 ft. long and contains R 12 as a saturated vapor…

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Q: Measuring the temperature of very cold substances can be challenging. Here is one way of measuring…

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Q: If 10kg of water at 920kPa pressure and at 60°C is heated to boiling point, then to dry saturated…

A: Question (a) &  (b) Part is Solved here. For the Other Part, Please post this question again.

Q: Water, with a mass of 328.15 grams and at 27.45°C, is heated at constant pressure. The water is…

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Q: What mass of Oxygen would occupy a volume of 0.6 m at 600 KPa and 30°C?

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Q: How much more time(minutes) needs to pass to reach 47°C.

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Q: Acetylene is contained in a 0.5-ft cylinder whose length is 40 inches. Initially, the pressure and…

A: Given that ,  d=0.5ft l=40in   =4012  =3.33ftP1=36000 lb/ft2T1=90°F=90+459.67=549.67P2=28800…

Q: 5. A 0.350 kg metal ball at an unknown initial temperature is dropped into a Styrofoam cup…

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Q: The dry saturated steam is expanded from 10 bar to 6 bar in a nozzle. If the expansion is…

A: The answer is in the next step

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.