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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?
After a 0.800 nm x-ray photon scatters from a free electron, the electron recoils with a speed equal to 1.32E+6 m/s. Through what angle was the photon scattered
Determine the required bandwidth to transmit the RC time constant and FM signal required for Preemphasis circuits.
The biological activity of some organs can be investigated using radioactive isotopes. For example, iodine is important in the action of the thyroid. if the physical half life of is 194 hr, what is the biological half life of iodine in the bulk of ..
A hydrometer is used to measure the specific gravity of liquids. For a sure liquid a hydrometer reading indicates a specific gravity of 1.15. What is the liquid's density and specific weight? State the answer in SI units.
A platform is rotating with an angular speed of 3.00 rad/s and an angular acceleration of 11.0 rad/s2. what is the magnitude of the total acceleration a
A truck is traveling at 11.4 m/s down a hill when the brakes on all four wheels lock. How far does the truck skid before coming to a stop
Two 8.0mm×8.0mm electrodes with a0.10-mm-thick sheet of Mylar between them are attached to a 9.0V battery. find the electric field before and after the Mylar is withdrawn
A 0.200 kg projectile is fired with a velocity of +745m/s at a 2.0kg wooden block that rests on a frictionless table. The velocity of the block, immediately after the projectile passes through it, is +45 m/s. Find out the velocity with which the p..
q1. a 8.9 kg mass is attached to a light cord that passes over a massless frictionless pulley. the other end of the
An ethernet cable is 3.95 m long and has a mass of 0.190 kg. A transverse pulse is produced by plucking one end of the taut cable. evaluate the tension in the cable
What is the tangential acceleration of a bug on the rim of a 7 in. diameter disk if the disk moves from rest to an angular speed of 76 revolutions per minute in 4 s.
The roof of the student dining hall at your college would be supported by high cross-braced wooden beams attached in the shape of an upside-down L. Each vertical beam is 10.0 ft high and 2.0 ft wide.
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