Physics, 18.03.2021 01:20 mahmudabiazp3ekot

A capillary tube is partially filled with liquid water at 40 C, evacuated to remove all air, and sealed, after which the liquid fills 20% of the tube (by volume). The tube is then gradually heated until a temperature is reached for which the vapor-liquid interface in the tube disappears. a. Use information from the steam tables and your understanding of the P-V behavior of pure fluids to estimate the pressure at which the interface disappears from the tube. At that point, is the phase a liquid or a vapor?
b. Repeat (a) for the case where the tube is initially filled 50% of the way with liquid water at 20 C HINT: Imagine what this process looks like on a PV diagram.

Answers: 1

Show answers

Another question on Physics

Physics, 22.06.2019 06:30

Which of these statements is true? a. quarks pair with leptons to form protons and neutrons. b. quarks pair with bosons to form photons. c. quarks pair with photons to form protons and neutrons. d. quarks pair with other quarks to form protons and neutrons. e. quarks pair with electrons to form protons.

Answers: 1

Answer

Physics, 22.06.2019 10:40

As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.

Answers: 1

Answer

Physics, 22.06.2019 15:30

Ametal ring 4.20 cm in diameter is placed between the north and south poles of large magnets with the plane of its area perpendicular to the magnetic field. these magnets produce an initial uniform field of 1.12 t between them but are gradually pulled apart, causing this field to remain uniform but decrease steadily at 0.240 t/s . (a) what is the magnitude of the electric field induced in the ring? (b) in which direction (clockwise or counterclockwise) does the current flow as viewed by someone on the south pole of the magnet?

Answers: 2

Answer

Physics, 22.06.2019 17:00

How many meters will a car travel if its speed is 45 m/s in an interval of 11 seconds? question 2 options: a) 450 meters b) 495 meters c) 4.09 meters d) 498 meters

Answers: 2

Answer

You know the right answer?

A capillary tube is partially filled with liquid water at 40 C, evacuated to remove all air, and sea...

Questions