A well-agitated mixture consists of equal moles of toluene and water at 100 oC. Toluene and water can be considered to be totally immiscible with one another. The vapor pressure of toluene is 556 mm Hg at 100 oC. What is the mole fraction of toluene in the vapor in equilibrium with this liquid mixture at 100 oC

first let us lay out the formula for potential

and kinetic energy:

pe = mgh

ke = (mv^2)/2

where: m=mass, v=velocity, g=gravitational

acceleration, h=height

calculating for mass using the known values of

pe:

340j = m (9.81 m/s^2) (50ft) (1m/3.28ft)

m = 2.27 kg

the law of conservation of energy states that

energy is neither created nor destroyed. therefore, the change in kinetic

energy from 50 ft to 35 ft would be equal to the change in potential energy

from 50 ft to 35 ft. however it would be opposite in signs since one is losing

while other is gaining.

ke(35ft) – ke(50ft) = - [ pe(35ft) – pe(50ft]

ke(50ft) = 0 since the brick is initially at rest

ke(35ft) = 340j - 2.27kg (9.81 m/s^2) (35ft)

(1m/3.28 ft)

ke(35ft)

= 102.38 j

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).

it's 3.2 on edge, i just took the test.