Nitrogen (k=1.4) is expanded isentropically. Its temperature changes for 620°F to 60°F. Find the pressure ratio (P1/P2) *

Q: There are expanded 0.90 kg/sec of steam at constant pressure from 30 bar & 30% moisture content. If…

A: m = 0.90 kg/sec P1 = 30 bar  X1 = 30% W= 121.3 kJ/sec

Q: One ideal gas is Cp=7/2R. One mole of this gas is trapped in a piston-cylinder device. Initially,…

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Q: An ideal gas in a container of fixed volume has a pressure of 3.2 atm at 60°C. A. What will the…

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Q: You have a 3.00-liter container filled with N₂ at 25°C and 4.25 atm pressure connected to a…

A: Given data P1=4.45 atmP2=2.75 atmV1=3 LV2=2 L

Q: You have compressed liquid propane in a 5 ft³ closed rigid vessel at 6000 psia and 300 °F but for…

A: The initial state (State 1) of the propane is at 6000 psia and 300°F, and the properties at this…

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: A quantity of 0.44 moles of air enters a diesel engine at a pressure of 148 kPa and at a temperature…

A: Given Data The number of moles are: n=0.44 The Pressure at the entry is: P=148 kPa The temperature…

Q: Assuming air is an ideal gas composed of only O2 and N2 how much heat is necessary to heat the air…

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Q: (That's the complete question an

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Q: A closed vessel contains air at a pressure of 160kPag and temperature of 30°C. The air is heated at…

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Q: Q3: In a closed vessel with a volume of 50 dm3 there are 2 moles of an ideal monoatomic gas with cv,…

A: Given data:-Volume of vessel(v)=50m3No. of moles=n=3specific heat of constant volumecv=12.471 Jk…

Q: A process at constant pressure pressure takes nn mole rigid diatomic from an initial temperature T…

A: Given:  Constant pressure process Number of moles of rigid diatomic molecules = n  Initial…

Q: An insulated, rigid tank is divided into two equal parts by a membrane. (Figure 1) At the beginning,…

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Q: A kilogram of Argon gas( MW= 40 kg/kmol, k=5/3) is in a piston cylinder set-up. Initially, it has…

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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.