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A reaction known to release 1.78 kJ of heat takes place in a calorimeter containing 0.100L of solution and the temperature rose by 3.65 degrees C. The calorimeter was then rinsed out and emptied. To the empty calorimeter was placed a small piece of calcium carbonate and 0.100L of dilute HCl was poured over it (in the same calorimeter). The temperature of the calorimeter then rose by 3.57 degrees C. What is the heat, q, in kJ released by the reaction? Remember to include the correct sign in your answer. Please show work.
A vertical tank of 4.sm2 cross-sectional area is filled with 13.5m3 of water, 9.0m3 0f a fluid with an s.G. of 3.2,6.75;. or oir with an s.G. of 0.85 and 0.9m3 of mercury with an s.G. of 13.s7.
Suppose your wait time for a shuttle bus in the morning is normally distributed with µ=8 minutes and t1=5 minutes. Due to increased congestion in the afternoon, your wait time for a shuttle bus in the afternoon is normally distributed
A 6.22-kg object passes through the origin at time t = 0 such that its x component of velocity is 5.45 m/s and its y component of velocity is -2.88 m/s. (a) What is the kinetic energy of the object at this time
material (LCY) in 12 yard dump trucks, placing it, and compacting the weight of the soil is 3,750 lb/cu.yd. (30 pts.) (show your calculations) a) Find the Swell and Shrinkage b) Load and Shrinkage Factors
Find the live load capacity, Pl of a beam with f prime c=4 ksi, fy=60 ksi, Wd=self weight, beam width b=18 inches, beam height h=24 inches, effective depth=21 inches, concrete unit weight=150 pcf, steel As=3-#9 bars.
Route a trianglular hydrograph through a 100 foot wide rectangular channel with a bed slope of 0.015 and a Mannings n of 0.035. Tak a distance between cross-sections of 3000 ft.
How many particles would be present in a cubic meter of aerosol at the concentration of the U.S. PM-10 standard or 50 micrograms/cubic meter if the particles are .1 micrometer in diameter.
scenario this is a real case project client is considering building a four story dual usage flats suitable for both
Drawdown at an observation well 15m from the pumped well is 3.0 m and a drawdown at a second observation well 150 m away is 0.30 m. Find the hydraulic conductivity of the aquifer.
In a water table aquifer bounded on the ends by rivers, the hydraulic conductivity is 50 m/day. The hydraulic heads at x = 0 and x = 1000 m are 100 m and 90 m, respectively.
Radon from well water may pose a radiological health hazard. One treatment technique is simply to hold the water in storage, allowing the radon to decay. how large must each be to achieve the desired level of control.
it was observed that the quantity of the water flowing through the sand layer into the collection ditch is 250 m^3/day. What is the hydraulic conductivity of the sand (k)
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