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The equilibrium constant for the reaction
is 4.2 X 1014. The molar absorptivities for the two principal species in a solution of K2Cr2O2 are
Four solutions were prepared by dissolving 4.00 × 10-4. 3.00 × 10-4. 2.00×10-4 and 1.00 x 10-4 moles of K2Cr2O2 in water and diluting to 1.00 L with a pH 5.60 buffer. Derive theoretical absorbance values (1.00-cm cells) for each solution and plot the data for
(a) 345 nm,
(b) 370 nm. and
(c) 400 nm.
calculate the attractive force of equilibrium between a pair of k and br- ion that just touch eachother rk 0.133nm and
a bicyclist leaves from her home at 9 a.m. and rides to a beach 40 mi away. because of a breeze off the ocean the
Saturated liquid water is compressed from 100 kPa (State 1) to 2.5 MPa (State 2) in an adiabatic pump having 85% isentropic efficiency. Calculate the specific work (kJ/kg) required for the compression of liquid water. Determine the entropy generation..
Steam enters a nozzle at 4 MPa and 640°C with a velocity of 20 m/s. This process may be considered reversible and adiabatic. The nozzle exit pressure is 0.1 MPa. (a) Draw a sketch of this process. Include all known information. (b) What is the entro..
a 6.44 kg steel ball is at a height of 8.12 meters above the floor traveling at a velocity of 4.69 ms and has an
A counter-flow double pipe heat exchanger is heat water from 20 degrees Celsius to 80 degrees Celsius at the rate of 1.2 kg/s. The heating is to be accomplished by geothermal water available at 160 degrees Celsius at a mass flow rate of 2 kg/s.
an article suggests that a poisson process can be used to represent the occurrence of structural loads over time.
calculate the diffusion coefficient for copper in aluminum at 600 degree celsius. preexponential and activation energy
The bottle rests at a distance of 3 ft from the center of the horizontal platform. If the coefficient of static friction between the bottle and the platform is ms = 0.3, determine the maximum speed that the bottle can attain before slipping. Assum..
What is the rate of heat transfer through a wall that is 2 m high by 2.5 m wide? Sketch the temperature distribution.
A container filled with 73 kg of liquid water at 99ºC is placed in a 60-m3 room that is initially at 12ºC and 1 atm. Thermal equilibrium is established after a while as a result of heat transfer between the water and the air in the room. Using consta..
The maximum running speed you would recommend for the pump.
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