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Acetaldehyde (C2H4O) is produced by oxidation of ethane (C2H6):
C2H6 + O2 --> CH3CHO + H2O
Since air is supplied at 20% excess, two side reactions occur:
2C2H6 + 7O2 --> 4CO2 + 6H2O
2CH3CHO + O2 --> 2CH3COOH (acetic acid)
In a process to produce 1000 kgmol/h acetaldehyde, ethane is fed to the reactor at 1500 kgmol/h and the fractional conversion is 0.8. The product stream contains 2 mol% CO2. Calculate the molar composition of the product stream and the fractional selectivity of ethane to acetaldehyde. Assume that air is composed of 79 mol% N2 and 21 mol% O2.
Show that a PI feedback controller is undesirable because it results in a differentiator in the forward path. Discuss the step response of the closedloop system.
Assume that losses cannot be offset against revenues from other operations for tax purposes (i.e., no tax credits in years when the plant makes a loss). Estimate the following:
Ammonium nitrate can decompose into dinitrogen monoxide gas and water. Write complete thermochemical balanced equation.
Strontium fluoride, SrF2, has a Kspvalue in water of 2.45 × 10-9at room temperature. Calculate the solubility of SrF2in water. Express your answer in units of molarity.
Calculate the mass of methane that must be burned to provide enough heat to convert 363.0 g of water at 43.0°C into steam at 117.0°C. (Assume that the H2O produced in the combustion reaction is steam rather than liquid water.)
A 10-turn square coil of side 200 mm is mounted on a cylinder 200 mm in diameter. If the cylinder rotates at 1800 r/min in a uniform 1.2-T field, determine the maximum value of the voltage induced in the coil.
What effect will inserting a baffle at the mid-height of the vertical section have on the convection heat rate for that section?
A waste with a concentration of 0.1 gram per liter is to be introduced to a hazardous waste reactor that is to achieve 90% destruction. A reactant
Determine the sampling rate if the signal is sampled at a rate 50% higher than the Nyquist rate.
What are the competing moral reasons involved? For example rights, responsibilities, duties, good consequences, admirable features, etc.
Finding the Heat of Reaction (Enthalpy) from Heats of Formation
What is the binding energy in J per nucleon for the cobalt-60 nucleus (atomic masses: 60Co 59.9338 amu; 1H=1.00782 amu). What is the de Broglie wavelength of the emitted particle if it has a velocity equal to 0.90c where c is the speed of light?
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