A well insulated piston-cylinder assembly contains one mole of ideal gas. There are two 3000 kg blocks on this well insulated 0.04 m2 piston. Its starting temperature is 600 K and ambient pressure is 4 bar. The gas is compressed by adding another 3000 kg block. Fixed volume heat capacity is given as (5/2) R. (a) Calculate the values of ∆Ssis and ∆Sis. (b) Does this process violate the second law of thermodynamics? Explain.

Q: A cylinder contains 1.2 moles of ideal gas, initially at a temperature of 117°C. The cylinder is…

A: Given data:The number of moles of an ideal gas is n = 1.2The initial temperature of the gas is Ti =…

Q: A coal fire boiler plant consumes 400 kg of coal per hour. The boiler evaporates 3200 kg of water at…

A: The answer is in the next step

Q: 7.261 kg of steam at a pressure of 20 bar and temperature of 300 deg C expands isentropically to a…

A:

Q: A 2.30-mol ideal diatomic gas, initially at temperature 123.0◦C, expands adiabatically to triple its…

A: Given, No of moles, n=2.3 mol The initial temperature, T1=123 0C=123+273.15 K=396.15 K V2=V1

Q: What is the change in the enthalpy, in kJ/kg, of oxygen as its temperature changes from 150 to…

A:

Q: A perfect gas with an initial volume of 0.1 m° is compressed adiabatically from 1.93 MPa and -4°C to…

A: Given: V1 = 0.1 m3 P1 = 1.93 MPa P2 = 5.84 MPa

Q: A cylinder contains a monoatomic ideal gas (17 moles) of volume 0.1 m and at a temperature of 30.8…

A: Given: V1 = 0.1 m3 , n = 17 moles, T1 = 30.8oC =303.95 K mass of piston; m=2.1kg area of piston; A =…

Q: 24. A gas is transferred to an empty 0.7m cylinder until the pressure reaches 9MPaa. The temperature…

A: Option c is correct.

Q: A four -cylinder Carnot engine having a 90 x 120-mm bore and stroke operates between 420 deg C and…

A: SOLUTION FOR 1ST QUESTION GIVEN DATA BORE D=90mm STROKE L=120mm HIGHER TEMPRATURE =420'C LOWER…

Q: A reservoir contains 2.83 cubic meters of CO at 6895 kPa and 23.6 degrees C. A cylindrical tank with…

A:

Q: Combustion gases enter the nozzle of a jet engine at 3.8 bar and 820 o C. The nozzle is well…

A:

Q: An ideal gas at 200 kPa and 273 K was heated inside a rigid tank until the pressure increased to 250…

A: Given that ideal gas Initial pressure is 200kpa Initial temperature is 273k Final pressure is 250kpa…

Q: 13. A gas is transferred to an empty 0.7m cylinder until the pressure reaches 9MPaa. The temperature…

A:

Q: An ideal gas with a mass of 2 kgs is contained in a 3.2 m3 rigid container. The initial temperature…

A: Given data Anideal gas with a mass of 2 kgs is contained in a 3.2 m3 rigid container. The initial…

Q: Determine the work done on steam in kJ during expansion.

A:

Q: 1. Question 2 (30 minutes): A cubic block of iron, with 2 cm dimension, is subjected to a…

A: Write the given data with suitable variables. a=2 cm=20 mm 10 mm1 cmP=50 ton=45359.2 kg=45359.2g…

Q: 8.263 kg of steam at a pressure of 20 bar and temperature of 300 deg C expands isentropically to a…

A: The work done on the steam during the expansion is 5547.14 kJ.

Q: &spring loaded piston cylinder device is initially filled with 0.1 kg of R- 134a saturated liquid…

A:

Q: 0.5 kg of superheated steam (2bar and 200°C is compressed isothermally until it becomes saturated…

A: Mass of steam = 0.5 kg Superheated state = 2 bar, 200°C

Q: 8.881 kg of steam at a pressure of 20 bar and temperature of 300 deg C expands isentropically to a…

A:

Q: Calculate the internal energy of 0.3 m3 of steam at 4 bar and 0.95 dryness. If this steam is…

A:

Q: Q2: A spherical vessel of 0.9 m³ capacity contains steam at 8 bar and 0.9 dryness fraction as shown…

A:

Q: A reservoir contains 2.83 cubic meters of CO at 6895 kPa and 23.6 degrees C. A cylindrical tank with…

A:

Q: The initial state of 1.00 mol of a dilute gas is P = 3.00 atm, V = 1.00 L, and Ent 1 = 456 J and its…

A:

Q: 10kg of a gas expands isothermally from 1000kPa to 100kPa. Initial temperature is 300C. What is the…

A: Given data  mass of gas (m) = 10 kg  P1 = 1000 kPa P2 = 100 kPa T1 = 300 C R = 319.2 J/kg-K k = 1.26…

Q: Determine the final temperature of 0.8kg of glass with heat capacity of C = 0.092 cal/g°k and…

A: Given data as per the question mass of glass= 0.8 kgheat capecity of glass=0.092 cal/g.k=385…

Q: A 70-lbm copper block initially at 220°F is dropped into an insulated tank that contains 1.2 ft3 of…

A: Given: The mass of the copper block is mC=70 lbm. The volume of the water is V=1.2 ft3. The initial…

Q: Hydrogen is expanded in a cylinder in an equilibrium process from initial conditions of volume of…

A: It is very basic question of thermodynamics. Used concept is work done in a closed system.

Q: In order to cool 1 ton of water at 20°C in an insulated tank, a person pours 140 kg of ice at –5°C…

A: Given: The mass of the water is mw= 1 ton= 1000 kg. The initial temperature of the water is T1,W=…

Q: onditions of the given phase change material. (1) In refrigerant R134a, calculate the temperature…

A:

Q: A perfect gas has a gas constant of 0.3192 kJ per kg K and a specific heat ratio of 1.26. If 120 kJ…

A: Given data,  R= 0.3192 kj/kgK  Y= 1.26  Q= 120 kJ  m= 2.28 kg  T= 32.2°C

Q: 1-kg of CO2 is compressed from 1MPag and 2000C to 3MPag in a piston-cylinder device arranged to…

A:

Q: A piston-cylinder device initially contains 10L of liquid water at 35.5C and at a pressure of 0.582…

A:

Q: 6.16 kg of steam at a pressure of 20 bar and temperature of 300 deg C expands isentropically to a…

A:

Q: The volume of a monatomic ideal gas doubles in an adiabatic expansion. By what factor do (a) the…

A: Given: Monoatomic ideal gas Adiabatic expansion V2=2V1 To determine: At what factor Temperature and…

Q: A perfect gas with an initial volume of 0.1 m3 is compressed adiabatically from 1.93 MPa and -4oC to…

A:

Q: 14. 10. A 3 kg of air at 150 kPa and 10°C is contained in a gas- tight, frictionless piston-…

A: Given:m=3 KgP1=150 KPaT1=10°CP2=650 KPa

Q: In a fixed volume container with a volume of 0.1 m^3, initially there is saturated water vapor at…

A:

Q: 8.459 kg of steam at a pressure of 20 bar and temperature of 300 deg C expands isentropically to a…

A:

Q: An Insulated rigid tank containing 0.25 m3 of air at 50 oC and 1.5 Bar. If a paddle wheel with a…

A:

Q: One mole of an ideal gas is kept in a container at an initial pressure of 2 kPa and temperature…

A: find the ratio of heat and work .

Q: 3000 kJ of heat is given to 1 kg of water at 20 C. If steam with a pressure of 750 kPa is obtained…

A: It is required to determine final state of water is wet or not

Q: A monatomic ideal gas initially fills a V0 = 0.45 m3 container at P0 = 85 kPa. The gas undergoes an…

A: Given data: The initial volume is V0=0.45 m3 The initial pressure is P0=85 kPa The volume after…

Q: Steam at 3.2 MPa and with 77.49⁰C SH rejects 1975 kJ/kg of steam heat at constant pressure.…

A: Given data: Process is heat rejection at constant pressure of 3.2 MPa. Let h1, s1, u1, T1 be the…

Q: Q1. For a compression process with isothermal conditions and PV=Constant , will the moles of…

A: Let us take one process 1-2. Subscript 1 represents state 1 and subscript 2 represents state 2.…

Q: Q3/ 0.08 m' of oxygen are contained in a sealed cylinder at a pressure of 1.5 bar and a temperature…

A:

Q: Steam at 20 MPa and 620°C enters a steam turbine and expands to a condenser pressure of 100 kPa. An…

A:

Q: Three moles of an ideal gas at 100 kPa pressure and 20oC are heated reversibly at constant pressure…

A: Number of moles n=3 Pressure P=100 kpa Initial temperature T1=20°C=293 k Final temperature…

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.