0.03-m of air is contained in the spring-loaded piston-cylinder device shown in Fig. P4-53. The spring constant is 875 N/m, and the piston diameter is 25 cm. When no force is exerted by the spring on the piston, the state of the air is 2250 kPa and 240°C. This device is now cooled until the vol- ume is one-half its original size. Determine the change in the internal energy and enthalpy

Q: Pressure cooker containing air at STP has been heated and after sometimes, it was observed that the…

A:

Q: Q4\closed system of 2kg undergoes adiabatic process. The work done on the system is 30000 J. if the…

A:

Q: 0106 m³/ kg. v=0.8908

A: given:container volume v=0.5m3mass m=1kgvf=0.00106m3/kgvg=0.8908m3/kg

Q: A 10 ft³ vessel of hydrogen at a pressure of 300 psia is stirred by paddles until the pressure…

A:

Q: In a spring-loaded piston-cylinder arrangement shown in Figure P4-57 0.03 m3 of air is contained in…

A:

Q: Refrigerant 134a expands in a piston-cylinder assembly from p₁ = 140 lb/in² and T₁ = 140°F to p2 =…

A:

Q: A piston-cylinder apparatus has a 2 kg piston with a diameter of 10 cm resting on a body of water 30…

A:

Q: During a process, the temperature of the system rises from 100°C to 200°C. Hent transfer per degree…

A: Given that,  T1=100°C=100+273=373 KT2=200°C=200+273=473 KδQδT=1.005 kJ/K…

Q: Water is enclosed in the piston/cylinder system as shown in the figure. The initial temperature of…

A: A piston-cylinder device with water inside. Initial conditions are Initial temperature,  T1 = 140 C,…

Q: A piston/cylinder assembly with a spring contains 0.075 kg of water. The piston is initially resting…

A:

Q: A piston-cylinder device initially contains 0.3 gm of steam at 200kPa and 400°C. Now the steam is…

A:

Q: A cylinder that has a 41.5-cm radius and is 50.0 cm deep is filled with air at 29.0°C and 1.00 atm…

A: Calculate the area of the piston. A=πr2 Here, A is the area of the piston, and r is the radius of…

Q: The piston-cylinder system shown in the figure contains water at 1 MPa and 300°C, and secured by a…

A: Note: As per our guidelines we are supposed to answer only the first 3 sub-parts. Kindly repost…

Q: A frictionless piston-cylinder device initially contains 200L of saturated liquid refrigerant-134a.…

A: 1. Given, V1=200LP1=P2=900KPaT2=70°CFrom the steam table Properties of refrigerant R-134a at…

Q: A gas is contained in a vertical, frictionless piston-cylinder device. The piston has a mass of 5 kg…

A: Given data:-The mass of the piston is The cross-sectional area of the piston  The atmospheric…

Q: Two different piston – cylinder devices each contain 1 kg of air. Initially, the temperature T = 300…

A:

Q: A spring is attached to the back of the frictionless piston. Initially, the spring exerts no force…

A: 8

Q: A piston-cylinder device contains water of quality x=0.7 and pressure 200 kPa with an initial volume…

A: Given:Inital pressure of water in the cylinder, P1=200 kPaInitial quality of water in the cylinder,…

Q: A piston/cylinder assembly with a spring contains 0.1 kg of water. The piston is initially resting…

A: Assumptions: For all states air behave as an ideal gas.Find:14Solution: State 1: P1 = 150 kPa, T1 =…

Q: Liquid A has a density of 0.85 kg/m3 and a specific sensible heat capacitance (Cv) of 2.2 kJ/kgK.…

A:

Q: Superheated steam at 1.0MPa and 300C inside a cylinder of volume 3.0 liters drives a piston in…

A: The ideal gas equation can be used for superheated steam. Here, the superheated steam expands…

Q: What is a quasi-equilibrium process? What is its importance in engineering?

A: Quasi-equilibrium process The quasi-equilibrium process is considered as the almost slow or…

Q: 2.5 kW of solar energy comes on top of the solar panel placed on the roof of a house. 25% of this…

A:

Q: Argon in the amount of 1.5 kg fills a 0.04-m3 piston-cylinder device at 554 kPa. The piston is now…

A: Given data:- The mass of argon (m) = 1.5 kg                     The initial volume…

Q: In the figure below a piston is free to move and will not exit the cylinder. Initially the cylinder…

A: Given Data Mass of air at state 1 is :m=2 kg Initial pressure is : P1=1.5 bar Initial temperature…

Q: Water is contained in a cylinder/piston arrangement fitted with upper stops which limit the volume…

A:

Q: Refrigerant 134a expands in a piston-cylinder assembly from p₁ = 140 lb/in² and T₁ = 140°F to p₂ =…

A:

Q: Thermodynamic problem. Determine the work necessary to compress a gas from an initial volume VI=90L…

A:

Q: A 130-mm-diameter cylinder contains 140 cm3 of water at 70°C. A 60-kg piston sits on top of the…

A:

Q: A cylindrical tank is filled with water at the rate of 4,550 GPM. The height of water in the tank…

A: Volume flowrate of a fluid is defined as the volume of the fluid flowing through a section per unit…

Q: Determine the mass of the R-134a.

A:

Q: -A piston of mass 60 kg sits in a cylinder containing water vapour. The diameter of the piston is 20…

A: Initial pressure insider the piston is

Q: A piston/cylinder assembly with a spring contains 0.1 kg of water. The pistor is initially resting…

A:

Q: 2–123 A 10-cm-diameter cylindrical shaft rotates inside a 50-cm-long 10.3-cm diameter bearing. The…

A:

Q: If in air at 60°C a body cools from 90°C to 80°C in 10 minutes, find the temperature 20 minutes…

A:

Q: Let the pressure in the cylinder shown below be a function of volume such that P = C/V (where C is a…

A: Work is said to be done by the system if the sole effect to the things external to the system gets…

Q: 4-22 1 kg of water that is initially at 90°C with a quality of 10 percent occupies a spring-loaded…

A:

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.