However a gas does a differential amount of work δWb as it forces the piston to move by a differential amount ds.

Q: body (mass 800 g) changes velocity from 25 m/sec to 40 m/sec, find the kinetic energy?

A:

Q: 21 a 1550-kg car moving at a constant speed of (900 km/hr) Its takes (16,000W)to keep it on alevel…

A: Given data: Mass of the car = 1550 kg Speed of the car (v) = 900 km/h…

Q: has a voluime of 33.9L at -11.68°C and 178.94 kPag. If the pressure and temperature are increased to…

A:

Q: For a rigid tank with a volume of  contains air at  , . The tank is heated to   ,  . The specific…

A: Givenrigid tankV=3m3T1=27oCP1=200kPaT2=102oCP2=250 kPaCv=0.718 kJ/kgKCp=1.005 kJ/kgK

Q: A mass of water of 1 kg enters a tank, the mass leaving the tank is 500 gm, then the change of mass…

A:

Q: A stationary mass of gas is compressed without friction from an ini- tial state of 0.3 m' and 0.105…

A: First law of thermodynamics states that in a closed cycle, the sum of heat is equal to sum of work.…

Q: The pressure inside a diesel engine cylinder is 20 kPa, find the work done if the volume changes…

A: Given data: P=20 kPaV1=3.5 m3V2=5 m3 Need to determine the work done.

Q: Find the kinetic energy stored in car of 30 kg moving with velocity 24 m/s

A: Given data : Mass of car=m Velocity of car=V   To find : Kinetic energy

Q: 3. How much heat is released by a system when 45Jof work is done on it to decrease energy to 23 J

A: Given Data Work done on the system is : W=45 J Decreased energy of system is : ∆E=-23 J Now from…

Q: A stationary mass of gas is compressed without friction from an ini- tial state of 0.3 m and 0.105…

A: Given Data:- V1=0.3 m3 P1=P2=0.105 MPa V2=0.15 m3heat transfer q= -37.6 KJ  (exothermic)

Q: Q4: Find the force when 60 kg of blood is given upward of about 0.1s, in a velocity nearly 1 m/s.

A:

Q: ive kg of water vapour are contained at 100 kPa and 85 percent quality in a suitable enclosure.…

A: Given:P=100 Kpax=0.85

Q: When heat is added to a system, the amount of heat added can   increase the temperature.…

A: Different types of thermal processes are: Isobaric process (constant pressure) Isovolumetric…

Q: 3. In a hot water heating system, water heated to 95°C and then is pumped at the rate of 4 L/min…

A: Given data: Q˙=4 L/min=4×10-3×60 m3/hr=0.24m3/hrT1=95°CTR=85°C Need to determine the heat released…

Q: Q 3) A fluid in a cylinder is at pressure of (101.526 psi). It is expended at constant pressure from…

A: To find: The work done in S.I unit in the cylinder. Given: The pressure, P = 6.894 kPa. The initial…

Q: Q3: Calculate the applied force to move the process Envierment w 100 lb Process W 100 lb u=0.2…

A:

Q: A car is moving with the initial velocity 15 m/s. Car stoped after 5s by application of breaks. Find…

A: Given data : Initial velocity=U Final velocity=V Time=t   To find : Retardation

Q: The ventilation in a house changes the air every five hours. How much power does it take to warm the…

A: Given : A = 150 m2 T0 = 0 C To find : Power required

Q: An object is dropped from a height of 14 m. At what height will it's kinetic energy and it's…

A: Given: kinetic energy= potential energy

Q: A steam turbine receives steam with a specific enthalpy of 31 17 kJ/kg at a rate of 5 kg/s. At the…

A: Givenh1=3117 kJ/kgm=5kg/sh2=2851 kJ/kg

Q: Q2: In an evaporator of a refrigerator, the refrigerant evaporates at (-20 °C) over the tubes. Water…

A:

Q: Find the work posses for a carbon dioxide gas at 1,995.59 C in kJ/kg. (Use W = mRT)

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Q: n wall then the work done by force on wall

A: given: when  a force is applied on wall then the work done by force on wall is?

Q: Ex.6.12 Through what distance will body A move to in changing its velocity from 6 fps to 12 fps?…

A:

Q: Find the density for air at 230 kPa and 500 K. A. 0.624 kg/m3 B. 1.60 kg/m3 C. 2.45 kg/m3 D. 12.8…

A: Given, Air pressure = 230KPa Air temperature = 500K   to determine: density

Q: A box shaped close system with a movable top contain water as working as fluid was kept a…

A: Here work done is given by W=P∆VW=P(Vfs-Vf)Here at T=293K and P=100 kPaSpecific volume=Vf=10-3…

Q: person heats up a can of soup on a stove. If they do 200 joules of work on the soup by stirring it…

A: Given information: The work done on the soup by stirring (W) = - 200 J (“-ve” since work is done on…

Q: Q2: A nozzle is a device for increasing the velocity of steadily flowing stream of fluid. At the…

A: GIVEN DATA- A NOZZLE GIVEN INLET CONDITION h1=3025 KJ/Kg , C1=60m/s , Z1=0m , A1=0.1m2 , v1=0.19…

Q: Q 1: For a particular gas system, the internal energy is given by : U = 2.5 PV + C, where P:…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: Q 1: For a particular gas system, the internal energy is given by : U = 2.5 PV + C , where P:…

A:

Q: Q2: Liquid water at 20°C flows straight up 30 m. 1- How much power pump is needed if the mass flow…

A:

Q: A stationary mass of gas is compressed without friction from an ini- tial state of 0.3 m' and 0.105…

A: First law of thermodynamics states that in a closed cycle, the sum of heat is equal to sum of work.…

Q: parts is 40 kg and 30 kg respective y, then mass to be balanced at the crank pin will be equal to?

A: given:Mreciprocating=40kgmrev=30kgbalanced percentage 60%

Q: Saturated steam is cooled at constant pressure (40 kPa) to a saturated liquid. Calculate the heat…

A: Given Data State 1:40 kPa, saturated vapor State 2:40 kPa, saturated liquid

Q: A fan moves air at a CFM of 867. It's motor has a 16:1 ratio. How many BTU/hr are given off by the…

A: Given CFM = 867 To find Air flow in BTU/hr

Q: d. The amount of heat transfer when the piston first hits the stops in kJ e. The total heat transfer…

A: Write the properties of steam at 5 MPa pressure and 507°C. Write the properties of steam at 5 MPa.…

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.