Water is being heated in a closed vessel on top of a range while being stirred by a paddle wheel. During the process, 300 kJ of heat transferred to the water, and 150 kJ of heat is lost to the surrounding air. The paddle wheel work amounts to 0.25 kJ. If the initial energy of the system is 200 kJ, then the final energy of the system in kJ is

Q: DERIVE THE INDIVIDUAL ENERGIES (K.E, P.E. and Work) OF THE GIVEN MECHANICAL SYSTEM. CLOCKWISE…

A: Given: To find: K.E, P.E

Q: A closed system undergoes an adiabatic process. During the process, the system operates at the same…

A:

Q: Does the work required to lift a book to a high shelf depend on how fast (in seconds) you raise…

A: Does the work required to lift a book to a high shelf depend on how fast (in seconds) you raise…

Q: It is a hot day in Atlanta and you and your friends bought an ice cream maker. The unit consists of…

A: To obtain the solution of the above question, we will apply the 1st law of thermodynamics and is…

Q: Problem 3-A 2-KW electric resistance heater in a room is turned on and kept on for 50 min. Calculate…

A: Data Given :Power of electric heater The Time To find:Amount of energy transferred to the room by…

Q: a 200-W vacuum cleaner is powered by an electric motor whose efficiency is 80%. (Note that the…

A: Given data Power of the vacuum cleaner = 200  W  Efficiency of the electric motor = 80 % To…

Q: A grist mill of the 1800s employed a waterwheel that was 14 m high; 480 L/min of water flowed onto…

A: Given: The height of the water wheel is H=14 m. The volume flow rate of the water on the wheel is…

Q: A ball of mass 0.40 kg hangs straight down on a string of length 15 cm. It is then swung upward,…

A:

Q: man weighing 180 Ibf is pushing a cart that weighs 100 lbf with its contents up ramp that is…

A:

Q: A closed system undergoes a process during which the system total energy is conserved. During the…

A:

Q: gas inside a piston-cylinder arrangement is being compressed by a 50 kJ of work. If its internal…

A: Given:W=-50 KJU1=60 KJU2=100 KJ

Q: In the factory where you work, there is a system like the one below, where you have two tanks at…

A: Given: To find: Volumetric flow rate

Q: Water is being heated in a closed pan on top of a range while being stirred by a paddle wheel.…

A:

Q: A cliff diver with a mass of 175 lbm dives from a 20 foot cliff into the sea. The initial velocity…

A: Given:m=175 lbmH=20 footinitial velocity,u=5 ft/sg=32.2 ft/s2a) Let h be the height of the diver…

Q: A 100-hp (1 hp = 746 W) car engine has a drive shaft rotating at 2000 RPM. How much torque is on the…

A: Given Data  1hp=746 W N=2000 rpm Power of the engine, P=100 hp Power=746(100)=74600 watt…

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.