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Problem: The stagnant liquid B in a container that is 10 cm high (L = 10 cm)is exposed to the non-reactant gas A at time t = 0. The concentration of A, dissolved physically in B, reaches cAo = 0.01mol/m3 at the interface instantly and remains constant. The diffusion coefficient of A in B is DAB = 2x10-9 m2/s. Determine the evolution of the concentration of A within the container. In the second part, repeat it but this time consider that A reacts with B according to the following reaction
A+B → C -rA = 2 x 10-7cA, mol/s.m3
A real engine has an efficiency of 33 % . the engine has a work output of 24 j per cycle.
Seaborg, discoverer of the transuranium elements. a. 263Sg was produced by the bombardment of 249Cf with a beam of 18O nuclei. Complete and balance an equation for this reaction. b. 263Sg decays by emission. What is the other product resulting f..
In an auto thermal reforming process, 1000 kmol/h of methane at 20 °C is compressed to 10 bar, mixed with 2500 kmol/h of saturated steam, and reacted with pure oxygen to give 98% conversion of the methane.
When the generators supply a battery of emf 300 V and resistance of 1.5 Ω.
Problem 1: For the circuit given in Figure 1 the power factor is 0.72 lagging and the power dissipated is 375 W.
A sealed rigid tank is filled with 1 kg of steam at 200 °C and 10 bar. What is the volume of the tank? 0.5 kg of steam are removed from the tank. If the temperature remains at 200 °C, what is the new pressure in the tank?
Determine the minimum required numerical value of the dimension b of the posts in term of mm and
A pressure drop of 0.8 bar is permissible on both streams. Allowance should be made for fouling by including a fouling factor of 0.0003 (W/m2 °C)-1 on the crude stream and 0.0002 (W/m2 °C)-1 on the kerosene stream.
Use the data below for the system benzene(1)/acetonitrile(2) at 45 °C to answer the following question: What is the saturation pressure of the pure components at 45 °C?
For a coil current I (dc), derive an expression for the force on the plunger.
The window washers A and B support themselves and the 30-lb uniform plank CD by pulling down on the two ropes
Be sure to allow sufficient time for equipment sizing, costing, and optimization. What intermediate deliverables would you specify to ensure that the project stays on track?
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