13. 1.5 kg of air at an initial condition of 3.5 bar and 180°C expands adiabatically and without friction to a final condition of 1.3 bar. Calculate the amount of workdone and the change in internal energy of the gas during expansion. Assume y- 1.4 and R-287 J/kg K for air.

Q: Air is contained inside a simple piston cylinder device as shown in the figure. It expands from…

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Q: Q3/ A cylinder fitted with a movable piston contains water at 3 MPa, 50% quality, at which point the…

A: Given data: Pressure at initial state is P1=3 MPa, Quality at initial state is x1=50%=0.50, Volume…

Q: 1. A 9.45 g sample of He had a volume of 25.2 dm³ at 325 K. Calculate the work done when the sample…

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Q: 3.00 molesof an ideal gas expands irreversibly from a pressure of 2.4 bars to a pressure of 0.15…

A: The data given is, Number of moles, n = 3 moles Temperature, T = 300 K Initial pressure, P1 = 2.4…

Q: 111 moles of water (molar mass 18 g/mole) at 50 °C spontaneously changes temperature. Half of the…

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Q: Calculate the compressor work in kJ required to compress 1 kg of an ideal gas from an initial volume…

A: Given:mass, m = 1 kgV1= 0.65m3P1= 101.3 kPaP2= 517 kPan=1.35This question aims to determine…

Q: 200Kg/min superheated steam at 40 bar and 350C enters a turbine through a 7.5cm ID pipe. It exits at…

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Q: A monatomic ideal gas is compressed isothermally from a volume of 2.0m^3 to 1.0 m^3. The initial…

A: (a) Write an initial volume of a gas. V1=2 m3   Write a final volume of a gas. V2=1 m3   Write an…

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.