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Calculate the nighttime concentration of nitrogen oxides 1 km downward of an open, burning dump if the dump emits NOx at the rate of 4 g/sec. The wind speed is 4 m/sec at 10 m above ground level. The stability class is B and the dump is assumed to be a point source.
The Pasuda Porcelain Company is about to launch a new luxury tableware range. The selling price for a set will be £90. To make the range the company has invested £319,000 in new equipment. Variable production costs will be £35 per set.
a. What is the melting point at standard conditions for ammonia? Boling point is given -33.4C. b. What is the enthalpy change for boiling ammonia at 0C?
Calculate the final solution volume and the shaft work in kW that the pump must deliver, assuming that the surface of the stored solution and the pipe outlet are both at 1 atm. Data. PH2O = 1.00 kg/L, Pgly = 1.26 kg/L. (Use to estimate solution de..
The stoichiometric point in the titration is reached 60.65 minutes after Y and Z were started simultaneously. The total volume in the beaker at the stoichiometric point is 655 mL. Calculate the flow rates of burets Y and Z. Assume the flow rates r..
Take thruster efficiency as 50%, specific impulse as 2600 sec, and specific power as 200 W/kg. This is not an optimum payload fraction; estimate an Is which would maximize the payload fraction with all other factors remaining the same.
The ideal-gas constant-pressure heat capacity may be taken to be constant and equal to 96.5 J/mol K.
Estimate the time required to reduce the ammonia concentration by 50% - What is the resulting percent kill?
Use the generalized graphs to calculate the entropy change of 1 mole of ethanol undergoing isothermal compression from 1 bar to 100 bar along the critical isotherm.
Estimate relative errors in the calculation of free carriers concentration when the Maxwell-Boltzman n statistics is applied for semiconductors with Ferm i energy wi thin the energy gap, if the Fenni level is 3kbT, 2k1,T, k,,T away from the ban..
Is rusting a moderate reaction? Rusting is an example of what reaction?
At an ice cream there there are 10 flavors of ice cream, four toppings, three types of sprinkles, and either whipped cream or chocolate sauce. How many combinations of ice cream are there?
Calculate the molar mass of a gas if 2.50 grams occupies 0.0875 liters at 685 torr and 35 degrees Celsius.
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