Apiston–cylinder device initially contains steam at 3.5 mpa, superheated by 5°c. now, steam loses heat to the surroundings and the piston moves down, hitting a set of stops, at which point the cylinder contains saturated liquid water. the cooling continues until the cylinder contains water at 200°c. determine (a) the initial temperature, (b) the enthalpy change per unit mass of the steam by the time the piston first hits the stops, and (c) the final pressure and the quality (if mixture).
Answers: 1
) = 3.5 MPa
) = 242.557°C [From Steam Table]
) of steam is given by-
– 
) = 200°C [Given] ……………………………..(1)
) = Specific Volume (
) = 0.00123 
/kg ….....(2)
= 1555 kPa
) = 0.0006.
Other questions on the subject: Physics
Physics, 22.06.2019 07:20, Nadi4753
Samir watches a 100-minute movie on his spaceship. maria's spaceshipe flies in the same direction as samir's spaceship but she observes his move to last 125 minutes and his spaceship to be 40 m long. how long does samir observe his own spaceship to be? according to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does marias voyage take according to samir?
Answers: 3
Physics, 22.06.2019 11:30, swaggyd6603
Write down two additional questions about earth's magnetic field that will make your presentation more informative.
Answers: 1
Physics, 22.06.2019 21:00, estebencampos69
Aflask with vinegar in it has a mass of 160 grams. a balloon with baking soda in it has a mass of 40 grams. the balloon is attached to the flask to seal the opening and the vinegar and baking soda mixes. the balloon inflates to a large volume. what will the total mass of the balloon and flask be after the balloon inflates? explain. a) less than 200 grams because the solid baking soda disappears. b) 200 grams, because all the atoms remain in the balloon or flask. c) more than 200 grams because the size of the balloon is so much larger. d) less than 200 grams because gases such as the one in the balloon are lighter than solids and liquids.
Answers: 1
Physics, 23.06.2019 02:30, yeehaw777
Atoms seldom exist as independent particles in nature a) as single particles, most atoms have low potential energy b) their electronegativity is much lower when they combine with other atoms c) atoms are more stable when they combine with other atoms d) neutral particles are rare
Answers: 2
You know the right answer?
Apiston–cylinder device initially contains steam at 3.5 mpa, superheated by 5°c. now, steam loses he...
Questions in other subjects:
Mathematics, 19.04.2021 16:00
Mathematics, 19.04.2021 16:00
