A piston-cylinder with 25 grams of saturated water within. Is kept at a pressure of 300 kpa. A heater inside supplies We,in =7.2kJ while the cylinder loses 3.7 kJ of heat. Show that the boundary Wb and the change in internal energy ∆U in this problem can be combined to form ∆H anf find the final temperatire in Celsius.

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Q: Thermodynamics problem. Saturated water occupies a volume of 1.2m3 . Heat is added until it…

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Q: 1 kg of steam expands isentropically from 2.5 MPa & 300 Degrees Celsius to .95 MPa. Find the final…

A: following is the solution to the above problem-

Q: A6: Aquantity of dry saturated Steam occupies o.2634m at 15 Mpa . Determine the final condition of…

A: Since type of process is not given during compression.Therefore, we will assume it as isothermal…

Q: Example 4-2 :A rigid tank of 1 m' contains nitrogen gas at 600 kPa, 400 K. By mistake someone lets…

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Q: find Vg al p-160 KPa find hg al Vg - 1.1

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Q: HW001 A gas is given 76 Calorie of heat and Gas does the 43 J of work in the expansion resulting…

A: Given Data⇒ Heat supplied (Q)=76 cal Work done (W)=43 J

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Q: Q2. A mass of 1000kg of saturated liquid water is completely vaporized in a isobaric (100kPa) heat…

A: Write the properties of saturated liquid and vapor at 100 kPa.

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Q: 2.7kg of water vapor at 500K and 100Pa is brought to a quality of 0.8 through an isothermal process.…

A: m = 2.7 kg water vaporP1 = 100 Pa = 0.1 kPaT1 = 500 K = 500 - 273 = 227 oCx2 = 0.8T1 = T2To find:…

Q: The vacuum at the steam inlet to a condenser was found to be 716 mm of Hg and the temperature of…

A: The vacuum efficiency is ηvacuum = 99.7%.

Q: Saturated liquid water at 500 kPa is throttled to a pressure of 200kPa. What is the finial…

A: According to the given data P1=500KPa and quality x=0 (Saturated liquid) P2=200KPa Throattling…

Q: 11. A diatomic gas (y 1'4) does 200 J of work when it is expanded isobarically. Find the heat given…

A: Data given -  Diatomic gas Y = 1.4  W = 200 J  Isobarically

Q: The water in the vessel consisting of liquid and vapor in equilibrium at 8.1111 Mpa. It has found…

A: Given data, P = 8.1111 MPa u = 2138.211 kJ/kg Find T,h,v,s Condition of steam

Q: A piston/cylinder has a water volume separated in VA = 0.3 m³ and VB = 0.4 m by a stiff membrane.…

A: Given Area A  VA= 0.3 m3 PA= 1000 kPa x = 0.8 Area B VB= 0.4 m3 PB= 1500 kPa T=250oC To find Final…

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Q: Given: Ammonia, P = 1.05 bar, T = -39.7°C Find: u (kJ/kg) Your Answer:

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Q: An automobile tire is inflated to 105 kPa at 30 deg. C. After being driven the temperature rises to…

A: It is the very basic question of thermodynamics. And modeled air in tire as an ideal gas . Use ideal…

Q: Q14 12 Kg of water at 25C Mixed with 30lit of water ats4e. calculate the temRature of the Mixture…

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Q: 1kg air is inside a 0.5m3 tank with pressure of 200kpa. Find its temperature

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Q: MPa and x=40% inside the piston cylinder. There is a 30C superheat introduced in steam…

A: Mass = 4 kgs Pressure = 1 MPa      saturation temperature corresponding to this pressure = 179.88 C…

Q: 1kg air is inside a 0.5m3 tank with pressure of 200 kpa. Find its temperature

A: Given Data m= 1 kg V= 0.5 m3 P=200 kPa

Q: Steam is throttled to 0.15 MPa, 140 °C. What is the quality of throttled steam if its pressure is…

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Q: 2. Initial condition: T = 360 °C h = 2,050 K1 kg Process: Isometric Final condition: Saturated…

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Q: Four kilogram of steam is initially at 1MPa and x=40% inside the piston cylinder. There is a 30C…

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Q: rigid tank of volume 1m3 contain 3kg of h2o intially at 4 bar the tank cooled until thetempreture…

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Q: A piston cylinder includes air with a pressure of 600 Kpa, a temperature of 290 K, and a volume of…

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Q: 3.Four kilogram of steam is initially at 1MPa and x=40% inside the piston cylinder. There is a 30C…

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Q: , at initial pressure of 0.046 bar and final pressure of 0.107 bar, find the following: Aht ;Ahg :…

A: Given data ,  P1= 0.046 bar  P2 = 0.107 bar

Q: With 3% moisture, 2kg of steam has an enthalpy of 6600KJ. It is heated at constant pressure to a…

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Q: Find the quanity of heat required to produce 79% dry steam at 8000 kpa from feedwater at 50 degrees…

A: Given:x=0.79P=800 KPaT=50°C

Q: Oe: steam at 2-5 Mpa and 3 00 C i> txpanded isentrupica to o.4 Mpa aud itis then fur ther expan ded…

A: Solution: We must find the inlet condition of the steam, therefore using steam tables, At P1=2.5MPa…

Q: pirt- Constant of 0kpa. The 0.07 m. Pe! is olution:

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Q: Defermine the internal energy Water at 20psi and foo"F

A: At 20 psia pressure and temperature is 400°F Saturated temperature at 20 psia is 227.92°F

Q: Container has 5 kg of ( N2) gas at 80 kPa, 1300K that is heated to 1600 K. Solve for the heat…

A: Given data:

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Q: Ammonia (an ideal gas) is contained in a 1.5 cubic meter pistion. Initially it is 200kPa 20C but it…

A: givenideal gas =ammonia initial volume V1=1.5m3initial pressure P1=200kPainitial temperature…

Q: wolume displacement rato

A: Given data; C=0.03γ=1.15v1=0.1089 m3/kg Acc. to question; Capacity:  Q=2 tons=2×3.5 kW=7 kW P1=1.50…

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.