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In household fires, it is often the smoke produced that creates a danger as great as the flames. Many plastic materials in the house contain polyvinylchloride (PVC); the formula for this compound is (C2H3Cl)n. Write an equation for the combustion of PVC in oxygen. Suggest a reason why its incineration poses a serious risk during a fire.
calculate the standard internal energy change for the reaction OF2 (g) + H2O (g) ------- >O2 (g )+ 2HF ( g) at298 ok. the standard enthalpies of formation of OF2, H2O , HF are +20 ,+250 and - 270 kj/mol
Find the total core loss if the frequency is increased to 400 Hz.
How many years of useful life should be estimated for the reactor if 12 percent of the total annual expenses for the plant are due to the cost for reactor depreciation? The straight-line method for determining depreciation should be used.
What is the expected electron configuration of elemental bohrium?
What does this experiment reveal regarding the biocompatibility of this device, specifically regarding the inflammation response?
Write four balanced equations for this system. Identify where any constitutive equations may be required for the modelling processes.
A mixture of 25% ammonia gas and 75 % air ( dry basis) is passed upward through a vertical scrubbing tower , to the top of which water is pumped. Scrubbed gas containing 0.5 % ammonia leaves the top of the tower, and an aqueou..
Estimate a value for the total project cost that will give 98% confidence that the project can be carried out within the amount estimated.
A thermocouple enclosed in a 3.2mm stainless steel sheath (e = 0.6) is inserted horizontally into a duct to measure the air temperature inside. The walls of the duct are at 650o C, and the true air temperature is 560o C. What temperature will be in..
100 m3/min of a gas mixture containing 1 mol % water and 99 mol % air is cooled at constant pressure of 1 bar from 200 °C to 25 °C. 50 % of the water in the inlet stream is condensed during this process.
The batch distillation product can be further purified by vacuum distillation. Sketch a block flow diagram of the process.
Derive an expression for the optimum economic thickness
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