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The U.S. Environmental Protection Agency (EPA) recommends that 222Rn levels not exceed 4 pCi per liter of air (1Ci=3.7x10^10 decay events per second; 1 pCi =1x10^-12 Ci). Convert 4.0 pCi per liter of air into concentrations units of 222Rn atoms per liter of air and moles of 222Rn per liter of air. Write out every step in your conversion and explain your answer.
Using the results of part (a), show that the electrons will fail to reach the second plate if (see the attached file for the equation) where -e and m are the charge and mass of an electron.
Calculate the work done in the isothermal reversible expansion of one mole of CH4 (g) from 1.00 dm3 to 10.00 dm3 at 300 K. Treat methane as a van der Waals gas. The van der Waals gas constants for methane are: a=2.3026 dm6⋅bar⋅mol-2 and b=0.043067 dm..
The estimated cost of the pipes, per unit length is: schedule 40 carbon steel $5, schedule 80 carbon steel $8.30, stainless steel (304) schedule 40 $24.80. Installation and fittings for all the materials adds $16.5 per unit length. The downtime re..
Draw a block diagram for the controlsystemaste your question here...
At full load and rated voltage, the line current is 65 A. Assume the field flux to be reduced by 6% from its value at no load, due to the demagnetizing effect of armature reaction. Compute the full-load speed.
In the case of China, assume that 85% of the plant cost can be sourced indigenously
Design a reactor to remove 1% acetylene from ethylene in a plant that produces 1.5 million metric tons per year of ethylene using this catalyst.
Calculate the radius of an iridium atom. Calculate the radius of an iridium atom, given that Ir has an FCC crystal structure,
Calculate the instantaneous and rms values of the voltage induced in a 150-turn coil on the armature, if the axial length of the armature and its inner diameter are both 100 mm.
At steady state with a feed concentration of 4 gmol/lit., and mean residence time of 65 sec in the second reactor, the concentration of feed to second from the first is found to be 2 gmol/lit., while that of the stream leaving the second is 1 gmol..
For solution C, 10.00 mL of solution B was diluted to 500.0 mL. Calculate the concentrations of the stock solution and solutions A, B, and C.
You have just been hired as part of the opening management team for a new restaurant in the area. As a group, chose 1 of the concepts from a team members' Week One Individual Project to utilize as your restaurant.
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