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A container of volume V is divided by partitions into three parts containing one kilomole of helium gas, two kilomoles of neon gas, abd three kilomoles of argon gas. respectively. The temprature of each gas is initially 300 K and the pressure is 2 atm. The partitions are removed and the gases diffuse into one another.
a) Calculate the kilomole fraction and the partial pressure of each gas in the mixture.
b) Calculate the change of the gibbs function and the change of the entropy of the system in the mixing process.
A whale comes to the surface to breathe and then dives at an angle of 20 degree below the horizontal.
What are the x-component and y-component of the velocity.
A loudspeaker of mass 20.00 {rm kg} is suspended the distance of h = 2.40 {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 3.50 {rm m}.
An emf is induced in a conducting loop of wire 1.11m long as its shape is changed from square to circular.Find the average magnitude of induced emf if the change in shape occurs in 4.03s and the local 0.135-T magnetic field is perpendicular to the ..
A 100kg crate is being pushed across a horizontal floor by a force P that makes an angle of 30 below the horizontal. The coefficient of kinetic friction is 0.20. What must be the magnitude of P, so that the net work completed by it and the kinetic..
A worker drops a wrench from the top of a tower 88.00 m tall. With what velocity does the wrench strike the ground? (Suppose the positive direction is upward.)
A toy of mass 0.155 kg is undergoing SHM on the end of a horizontal spring with forces constant 305 N/m. When object is a distance 1.20×10-2 m from its equilibrium position, it is observed to have the speed of 0.255 m/s.
A 100 arrow is shot vertically from a bow whose efficient spring constant is 500. If the bow is drawn 75 before shooting the arrow, to what height does the arrow rise .
The flywheel of an engine has a moment of inertia 2.20 {rm kg} cdot {rm m}^{2} about its rotation axis. What is its final kinetic energy.
A tank having a volume of 0.100 m3 contains helium gas at 135 atm. How various balloons can the tank blow up if each filled balloon is a sphere 0.300 m in diameter at an absolute pressure of 1.50 atm.
The pulley is frictionless and of negligible mass. The coefficient of kinetic friction between mass 1 and teh ramp is 0.25. Evaluate the change in kinetic energy of the 50 kg block as it moves from a to b, a distance of 20 m
What is the tension in each cable if angle between each and the direction the crate moves is 12°.
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