magnitude of total work done (in kJ) on the

Q: If the density of liquid is 950 kg/m3, the specific volume of that liquid is      a.   4.105…

A:

Q: 1.34 A piston/cylinder with a cross-sectional area of 0.01 m? has a piston mass of 65 kg plus a…

A: Given: Po = 101 kPa A = 0.01 m2 m = 65 kg F = 800 N Answer: P = 244700 Pa = 244.7 kPa So, to lift…

Q: A cup of coffee cools down by transferring heat to the surroundings at a rate of 1 kW. If the mass…

A: Given:              . Rate of heat transfer(Φ) =1 kn.              . mass of coffee (water)  =n= 0.2…

Q: Half a liter of liquid is being heated in a closed container to prepare food. Initial temp is 25C…

A:

Q: If a 0.9 kg object hanging from a spring stretches it by 0.20 m, then by how much will the spring be…

A: Given data :-  m = 0.9kg x = 0.20 m  Find :-  x when m = 1.8kg

Q: How much work is done by the gravitational force when a250 kg pile driver falls 2.80m?

A: Given :  mass of pile driver , m = 250 kg height of fall , h = 2.8 m   To find ;  work done by the…

Q: A piston-cylinder assembly contains 0.5 lb of propane. The propane expands from an initial state…

A:

Q: A pail and its contents weigh 80 lb. The pail is attached to the end of a 100 ft rope that weighs 10…

A: Any action that can change the state of motion of the object is known as force. The force is…

Q: . A man whose mass is 70 kg walks up to the third floor of a building. This is a vertical height of…

A: Given, Mass of man = m = 70 kg Change in height = h = 12 m Time spent = t = 20 s   Additionally, we…

Q: 1.20 A tank contains 0.3 kmol of carbon dioxide (CO₂) gas. The volume occupied by the gas is 2.5 m³.…

A: Given that,  0.3 kmol of CO2  Volume, V= 2.5 m3  To find:  Specific Volume, v =?

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.