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At 25°C the vapour pressure of pure pentane is 511 torr and that of hexane is 150. torr.
What is the mole fraction of pentane in a pentane-hexane solution that has a vapour pressure of 345 torr at 25°C?
What is the mole fraction of hexane in the vapour that is in equilibrium with this solution?
A uniform disk with a mass of 875 g and radius 17.0 cm is rotating on frictionless bearings with an rotational speed of 18.0 Hz, What is the new rotational speed of the disk
He would like a prescription for contact lenses to serve the similar purpose. What is the correct contact lens prescription, in diopters.
A block with mass of 4.52 kg is attached to a horizontal spring with spring constant k = 3.59 102 N/m, Find the speed of the block at the equilibrium point
A large storage tank, open to the atmosphere at the top and filled with water, Determine the speed at which the water leaves the hole
A potter's wheel is a uniform solid disk of diameter 0.72m and a mass of 60kg. what is moment of inertia of the disk
A 10-kg block starts from rest on an incline. After 1 second the block travels at 12 m/s 1 meter down the incline. What is the theta, the angle of the incline
After thermal equilibrium has been reached, the system has a change in temperature measured as 0.020 oC. explain the entering speed of the bullet.
A certain dog whistle operates at 22.75 kHz, while another (brand X) operates at an unknown frequency. estimate the operating frequency of brand X
A 662 KeV photon from 137Cs is compton scattered at an angle 60, calculate the energy of the scattered photon
A light bulb is placed at a distance of 15 cm in front of a convex mirror with a radius of curvature of 40 cm. Where is the image of the light bulb
A 32.5-g glass thermometer reads 24.1?C before it is placed in 131mL of water. What was the original temperature of the water
Asterix and Obelix are standing on skateboards on level ground 2 m apart. Obelix holds a ball of mass 1 kg. in which direction will the center of mass move
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