Molecular Physics | Thermodynamics Answers

The rate mass of a fluid is 12 grams/s, is flowing in a tube at 0.9 m/s and it has a density of 1.7 grams/m3. What is the diameter of the tube?

Air is contained in a rigid container has a pressure of 0.5

bar vacuum. If the atmospheric pressure is 740 mm Hg, and

the density of mercury is 13.59 g/cm3. Determine the absolute pressure of the container in bar.

Steam at 100 bar, 3200 C expands isothermally in a cylinder behind a piston to a pressure of 10 bar. Solve for the work done per kilogram of steam. 

What is the volume of a aluminum ball at 10 degree celsius if its volume at 160 degree celsius is 300m³

An empty rubber balloon has a mass of 0.0120 kg. The balloon is filled with helium that has a density of 0.179 kg/m³. The filled balloon has a radius of 0.500 m. (density of air is 1.29 kg/m³ and assume no air resistance). The balloon is now released, find the following:

a)   The acceleration of the balloon.

b)   The final velocity of the balloon after 10 s.

c)   The height of the balloon after 10 s.

At normal pressure (101325 Pa) a gas has 1 ∙ 1022 molecules per unit volume. What is the average kinetic energy of its molecules?

If I walk 20 miles north, then 15km east, then 10 km at 35 degree south of east, what is the magnitude of my displacement?

Jorge pushes a 10 kg box of medicine along a rough surface with 35N of force. He observes that it is only accelerating at a rate of 2 m/s2. What must the value of the force of friction be? (Assume the only two forces acting on the object are friction and Jorge).

What is positronium system.

Write three transport phenomenon