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Consider a liquid-vapor mixture of ammonia and water in equilibrium at 25°C. If the composition of the liquid phase is 50 percent NH3 and 50 percent H2O by mole numbers, determine the composition of the vapor phase of this mixture. Saturation pressure of NH3 at 25°C is 1003.5 kPa.
The magnetic north azimuth of a line is 128 degrees 27' while the magnetic declination is 3 degrees 30'E. What is the astronomic azimuth of the line (in decimal degrees)?
A pair of dice is tossed repeatedly. Find the probability that an 11 occurs for the first time on the 6th toss.
above a peninsula of land. the length of the box is 25 km, its width is 80 km, and a radiation inversion restricts mixing to 25 m. Wind is blowing clean air into the long dimention of the box at 0.8 m/s.
Water flows uniformly in a 6 m wide rectangular channel at a depth of 0.8m. The channel slope is 0.0015 and n=0.014. Find the flow rate in m3/s
First consider highway driving. Assume a constant velocity of 27 m/s (60.4 mph) on level ground. Under these conditions the efficiency of the engine plus auxiliaries is 30 percent and the efficiency of the drivetrain is 85 percent. What is the fuel c..
Calculate the surface area (m2), diameter (m), volume (m3), and hydraulic retention time of a 3 m deep circular, primary clarifier that would remove 50 percent of suspended solids. Assume the surface overflow rate (SOR) used for design is 60 m3/m2-..
A car starts from rest and moves along straight line with anacceleration of a = (3s-1/3)m/s2, where s is in meters. Determine the car'svelocity and position when t = 6s
Find the deflection and moment right and left side of center wheel in cm regarding the day of your birth - Evaluate the principles of maintenance and performance.
Then calculate a 6% tax on the total and display the total amount owed (including the tax) Round your answer to two decimal points and include the dollar sign in your display as appropriate.
The initial ultimate BOD after mixing of the Bergelmir Riveris 12.0 mg/L. The DO in the Bergelmir River after the wastewaterand river have mixed is at saturation. The river temperature is 10degrees celsius
Assume the lubricating fluid is changed to oil with a dynamic viscosity of 1.4X10E-3 lbf-s/ft^2. Now what air pressure, in psig, is required to overcome shear force ? Use the same lift rate of 0.1 ft/sec.
the force-couple system at A is to be replaced by a single equivalent force acting at a point B on the vertical edge of the triangular plane. determine the distance d between A and B
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