The state of an ideal gas with C_P = (5/2)R is changed from P1 = 1 bar and V1=12 m3 to P2​=12 bar and V2=1 m3 by the following mechanically reversible processes: (a) Isothermal compression. (b) Adiabatic compression followed by cooling at constant pressure. (c) Adiabatic compression followed by cooling at constant volume. (d) Heating at constant volume followed by cooling at constant pressure. (e) Cooling at constant pressure followed by heating at constant volume. Calculate Q, W, ΔU, and ΔH for each of these processes, and sketch the paths of all processes on a single PV diagram.

Q: 2.4kg of water vapor is cooled in a closed, rigid tank from T = 440 °C and Р = 100 bar to a final…

A: Givenm=4kginitial state T1=440oCP1=100 barfinal stateT2=320oC

Q: Determine the work and heat transfer, in Btu.

A:

Q: A divider separates 1 lb mass of carbon monoxide (CO) from a thermal reservoir at 150o F. the carbon…

A: Part(a).For CO:

Q: Refrigerant 134a at p1 = 30 lb/in², T1 = 40°F enters a compressor operating at steady state with a…

A:

Q: A piston-cylinder assembly contains 0.4 lb of air initially at a pressure of 30 lb/in² and a…

A: Given that: m = mass of air inside the cylinder = 0.4 lb P1 = 30 lbf/in2 T1 = 200 oF k = specific…

Q: An ideal gas described by T1 = 300 K, P1 = 1.20 bar, and V₁= 15.0 L at its intial state is heated at…

A: To find: The number of moles, the volume and temperature at 2 and 3 and work done at every process.…

Q: Superheated water at 1 MPa and 300 C is allowed to cool at constant volume until the temperature…

A:

Q: Steam at 170 bar has a specific volume of 0.01796 m³/kg, determine the temperature, the specific…

A: Specific volume: The ratio of the volume to the mass of the fluid is known as the specific volume.…

Q: Air within a piston-cylinder assembly, initially at 50 lbf/ in.?, 510°R, and a volume of 6 ft³, is…

A:

Q: n moles of air are contained in a closed system at a temperature of 300 K, pressure of 1.5 bar and…

A:

Q: Air within a piston–cylinder assembly, initially at 50 lbf/ in.2, 510°R, and a volume of 6 ft3, is…

A: Given data: P1=50 lbf/in2=7200 lb/ft2T1=510°RV1=6 ft3V2=0.5 ft3k=1.4 Need to determine the mass, in…

Q: A rigid, well-insulated tank contains a two-phase mixture of ammonia with 0.0022 ft3 of saturated…

A:

Q: A 30-lb iron casting, initially at 1500°F, is quenched in a tank filled with 2121 lb of oil,…

A: Given data: ◆ The properties of iron casting: 1. Mass: mi = 30-lb 2. Initial temperature: Ti = 1500…

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.