subject
Engineering, 28.09.2019 01:10 kah36

Apiston-cylinder assembly contains air, initially at 2 bar, 300 k, and a volume of 2 m^3. the air undergoes a process to a state where the pressure is 1 bar, during which the pressure-volume relationship is pv = constant. assuming ideal gas behavior for the air, determine the mass of the air, in kg, and the work and heat transfer, each in kj.

ansver
Answers: 1

Another question on Engineering

question
Engineering, 04.07.2019 18:10
Air is to be cooled in the evaporator section of a refrigerator by passing it over a bank of 0.8-cm-outer-diameter and 0.4-m-long tubes inside which the refrigerant is evaporating at -20°c. air approaches the tube bank in the normal direction at 0°c and 1 atm with a mean velocity of 4 m/s. the tubes are arranged in-line with longitudinal and transverse pitches of sl- st 1.5 cm. there are 30 rows in the flow direction with 15 tubes in each row. determine (a) the refrigeration capacity of this system and (b) pressure drop across the tube bank. evaluate the air properties at an assumed mean temperature of -5°c and 1 atm. is this a good assumption?
Answers: 1
question
Engineering, 04.07.2019 18:10
Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise
Answers: 3
question
Engineering, 04.07.2019 18:20
Apiston-cylinder device contains 0.1 m3 of liquid water and 0.9 m3 of water vapor in equilibrium at 800 kpa. heat is transferred at constant pressure until the temperature of water reaches 350 °c. determine (a) the quality of water at the initial state (b) the work associated with this process, (c) the heat associated with this process.
Answers: 2
question
Engineering, 04.07.2019 18:20
Water vapor initially at 10 bar and 400 °c is contained within a piston-cylinder assembly. the water lost heat to the surrounding according to isochoric (iso-volumetric) process until its temperature is 150 °c. the water is then condensed isothermally to saturated liquid. for the water as a system, calculate the work in kj/kg
Answers: 2
You know the right answer?
Apiston-cylinder assembly contains air, initially at 2 bar, 300 k, and a volume of 2 m^3. the air un...
Questions
question
Mathematics, 07.11.2020 01:40
question
Mathematics, 07.11.2020 01:40
question
Mathematics, 07.11.2020 01:40
question
Mathematics, 07.11.2020 01:40
question
Mathematics, 07.11.2020 01:40
question
Mathematics, 07.11.2020 01:40