A rigid, insulated tank that is initially evacuated is connected through a valve to a supply line that carries Helium at 200 kPa and 120°C. Now the valve is opened, and helium is allowed to flow into the tank until the pressure reaches 200 kPa, at which point the valve is closed. Determine the final temperature of the Helium in the tank if the specific heat ratio fo

Q: An insulated rigid tank is initially evacuated. A valve is opened, and atmospheric air at 95 kPa and…

A: The atmospheric pressure of the air is P1=95 kPa. The atmospheric temperature of the air is T1=17…

Q: A steam boiler of volume 2.3 m3 initially contained 1.7 m3 liquid water in equilibrium with 0.6 m3…

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Q: Saturated liquid refrigerant 134a at 900 kPa is throttled to a pressure of 200 kPa. What is the…

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Q: An air compressor delivers 0.20 m3 of air at a pressure of 850 kPa and 31 oC into an air reservoir.…

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Q: Refrigerant-134a enters an adiabatic compressor as saturated vapor at 160 kPa at a rate of 2 m3 /min…

A: Given Data: The refrigerant used is R-134a. The inlet pressure at the compressor is p1= 160 kPa.…

Q: An insulated rigid tank contains 4.4 lbs of saturated liquid-vapor mixture of water at 100 kPa. An…

A: Givenm=4.4lbs=4.4×0.453592kg=1.99581kgP=100kPax=25%=0.25

Q: A 2-m3 rigid tank initially contains air at 100 kPa and 22°C. The tank is connected to a supply line…

A: Given: The initial temperature of the air is T1=22°C. The final temperature of the air is T2=77°C.…

Q: Saturated vapor enters the turbine at 8.0 MPa and exits 0.008 MPa. The turbine has an isentropic…

A: Answer: The electrical power produced is 21507.3 kW.

Q: Problem 2. The flow rate of air in a rectangular duct is to be determined by installing pressure…

A: The problem is asking us to calculate the volumetric flow rate of air in a rectangular duct with a…

Q: A 2-m³ insulated tank initially containing saturated water vapor at 1 MPa is connected through a…

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Q: Calculate the amount of energy (kJ/kg) required to convert saturated water at 150 kPa to superheated…

A: here total energy required for this process is change in enthalpy between final state and initial…

Q: A 2 m3 tank initially contains a mixture of saturated-vapor steam and saturated-liquid water at 3200…

A: Write the properties of steam at 3200 kPa Write the expression for the dryness fraction of the…

Q: Refrigerant-134a enters an expansion valve at 1200 kPa as a saturated liquid and leaves at 200 kPa.…

A: Given data P1=1200 KPAP2=200 KPaT0=25 °c=298 K

Q: A rigid, insulated tank that is initially evacuated is connected through a valve to a supply line…

A: Write the properties of helium. Write the expression of the specific volume. Write the expression…

Q: Q3/ A rigid, insulated tank that is initially evacuated is connected through a valve to a supply…

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Q: A piston-cylinder device is divided into two compartments, A and B, containing steam at pressure P =…

A: Compartment A and B contains steam at P= 500 kPa   Properties fetched from steam table   Mass…

Q: Saturated vapor enters the turbine at 8.0 MPa and exits 0.008 MPa. The turbine has an isentropic…

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Q: Refrigerant R134a enters an expansion valve at 800 kPa as a saturated liquid and exits at 100 kPa.…

A: Given:The initial pressure is .The final pressure is .The initial condition is saturated…

Q: An ideal free piston-cylinder with an initial volume of 0.5500 m³ contains 19.00 kg of refrigerant…

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Q: A 3 m' tank initially contains air at 100 kPa and 25°C. The tank is connected to a supply line at…

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Q: Which process requires more energy: completely vaporizing 100 kg of saturated liquid water at 1atm…

A: Saturated liquid is the liquid present at the saturated liquid lines which means that this is at…

Q: A rigid, well-insulated tank is initially empty. The tank is kept connected by means of a valve to a…

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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.