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A total of 2.00 mol of a compound is allowed to react in a foam coffee cup that contains 138 g of water. The reaction caused the temperature of the water to rise from 21.0 to 24.7 C. What is the enthalpy of this reaction? Assume that no heat is lost to the surroundings or to the coffee cup itself.
Enter your answer in kilojoules per mole of compound to three significant figures.
Advanced Stress Analysis
(a) Find the rate of heat transfer (kW) to the water. (b) Draw a schematic of the system. (c) Determine the air outlet temperature (°C)
A simple plate capacitor can store 6.5x10^-5 C at a potential of 10000 V. what dielectric constant must the material between the plates have if their area is 6.0x10^-5 m2 and they are 0.16 mm apart?
Determine the angle theta degrees that requires the minimum torque T to keep the seam closed. (Hint: use Mohr's circle). Give the answer in degrees.
Sketch the fully annotated velocity triangles for a Parsons turbine stage. Use your sketch to show that the specific work produced per stage is given as w_stage = (C_b)^2 [1 + 2(f/C_b)(cot(B_1))].
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Wind turbines are becoming more and more common as a method of energy production, wind turbines by their very nature are dynamic and are subject to and create their own internal and external kinematics and kinetics.
Is there a good calculation model for the material flow through a combine harvester related to the harvesting speed?
calculate the enthalpy change of the universe during the process. Cp=Cv = 4.18 kj/kgK
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