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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.
In a random pattern of eight bits used to test a micro-circuit, each bit is equally likely to be 0 or 1. Assume the values of the bits are independent.
Discuss the method of investigation for upgrading gravel road to bituminous paved road,40km long
What is the recommended clear zone distance for the following roadway situations? (Use the Clear Zone nomograph to find solutions)
Determine the maximum possible precipitation at New York City that may be encountered on a 100 mi^2 drainage area over a 96 hr period.
The setting velocity of a particle is 0.002 m/s and the overflow rate of a settling tank is 0.008 m/s. (a) what percent of the particles does the settling tank capture. If the particles are flocculated so that thie rsettling rate is 0.05 m/s
Write a script newquot.m that uses the Newton quotient, [f (x + h) - f (x)]/h, to estimate the first derivative of f (x) = x3 at x = 1, using successively smaller values of h: 1, 10-1, 10-2, and so forth. Use a function M-file for f (x).
a certain pesticide is fatal to fish fingerlings at a level of 0.5 parts per million in water. a leaking metal can
A cylindrical metal specimen 12.0 mm in diameter and 120 mm long is to be subjected to a tensile stress of 40 MPa . at this stress level the resulting deformation is totally elastic.
The influent flow is 380 Lpcd and the influent BOD5 is 200 mg/L. Pertinent data are: Primary clarifier removes 33% of the influent BOD5, and the state regulatory agency allows a volumetric loading of 0.48 kg BOD5 /(m3.day). Determine the reactor b..
Design a lined trapezoidal channel to carry 20 m^3/sec on a longitudinal sloe of 0.0015. The lining of the channel is to be float-finished concrete (n=0.015). Consider (a) the best hydraulic section and (b) the section with side slopes 1.5:1 (H:V)
A catheter is a specialised needle intended for long-term insertion into a vein in a patient's arm. Engineers are redesigning them to cause less discomfort and damage. An intravenous chemotherapy system is based on a new catheter design.
Plotted property surveys usually show the direction of property lines as bearings and not azimuths. True or false give reason to answer?
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