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Consider the following reaction: 2H2(g)+ O2(g) yields 2H2O(l); delta H=572 kJ .
a. How much heat is evolved for the production of 1.00 mol of H2O(l )?
b. How much heat is evolved when 4.03 g of hydrogen is reacted with excess oxygen?
c. How much heat is evolved when 186 g of oxygen is reacted wih excess hydrogen?
d. The total volume of hydrogen gas needed to fill the Hindenburg was 2.0 108 L at 1.0 atm and 25C. How much heat was evolved when the Hindenburg exploded, assuming all of the hydrogen reacted?
Devise a control system for this reactor, and draw up a preliminary piping and instrument diagram. The following points need to be considered:
Ethylene and propylene are valuable monomers. A key step in the recovery of these materials is fractionation of the olefin from the corresponding paraffin (ethane or propane). These fractionation steps require refrigeration of the overhead condens..
If the output voltage is to indicate increments of 0.1 V, find the bits that must be used.
Estimate the temperature of saturated steam which must be used when the exchanger is new (i.e., no scale present) if the water enters the unit at a rate of 15,000 gph and is heated from 70 to 150°F.
A synchronous generator has a rotor with six poles and operates at 60 Hz.
mole of oxygen in the exhaust gas per unit weight of fuel. e- mole of water vapour in exhaust gas per unit weight of fuel.
A mixture of acetone and isopropanol containing 50 mol% acetone is to be distilled continuously to produce an overhead product containing 80 mol% acetone and a bottoms containing 25 mol% acetone. If a saturated-liquid feed is employed, if the colu..
Explain why the resting potential does not equal the Nernst potential of any of the ions
Negligible heat is transferred from the nozzle to its surroundings. The approach velocity of the steam is negligible. The specific enthalpy of steam is 2974J/kg at 260°C and 7bar and 2860kJ/kg at 200°C and 4bar. Use the open-system energy balance ..
Temperature variations are small over the shaft cross section. Evaluate the temperature and conduction heat rate at the shaft-pipeline joint (x = 0) and at the shaft-ground interface (x = 1 m)
50. Methanol is synthesized from carbon monoxide and hydrogen in a catalytic reactor. The fresh feed to the process contains 32.0 mole% CO, 64.0% H2, and 4.0% N2. This stream is mixed with a recycle stream in a ratio S mol recycle/1 mol fresh feed to..
A turbine is fitted in the pipeline to recover the excess energy that is available, over that required to transfer the liquid from one vessel to the other. Estimate the power that can be taken from the turbine, when the liquid transfer rate is 500..
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