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Write reactions for which the enthalpy change will be
a. Hf for solid aluminum oxide.
b. The standard enthalpy of combustion of liquid ethanol, C2H5OH(l ).
c. The standard enthalpy of neutralization of sodium hydroxide solution by hydrochloric acid.
d. Hf for gaseous vinyl chloride, C2H3Cl(g).
e. The enthalpy of combustion of liquid benzene, C6H6(l ).
f. The enthalpy of solution of solid ammonium bromide.
What do charge balanced and mass balanced mean? How are redox reactions charge balanced? Explain why we must have the same number of electrons in both half reactions, and write down your answer.
Following a procedure analogous to that in Example 5.2, obtain an expression for the coefficient of thermal expansion based on the van der Waals equation of state. Use the result to calculate the value of β for oxygen at 20 °C, 30 bar.
Determine the motor current and speed when the diverter-circuit resistance is made equal to the series-field resistance. Neglect saturation and the voltage drops across the series- field resistance as well as the armature resistance.
Derive an expression for Concentration of substrate versus the length of the packed bed reactor as a function - determine the Vm" (mol/m2s) value necessary to convert 80% of the substrate to product in the reactor.
A sealed rigid tank of 1 m3 capacity contains 1.2 kg of water at 1 bar and 99.63 °C. To this tank we add heat until the pressure increases to 3 bar. What is the temperature at the end of the heating?
Suggest suitable materials of construction for the following applications: a. A 10,000 m3 storage tank for toluene
A first order reaction requires two equal sized CSTR. The conversion is 1. more when they are connected in series. 2. less when they are connected in series.
determine the minimum service life allowable for the facilities at the distant location for this alternative to meet the required incremental return. The salvage value should be assumed to be zero, and straight-line depreciation accounting may be ..
Find references for the magnitudes of these factors, andsum up the total amount of petroleum saved in a year, and total amount of CO2 saved in a year
Determine the 50- Hz applied voltage and the slip at which the motor will develop a torque equal to its 60-Hz full-load value.
Also find the source voltage that would yield I = -8µA.
Aniline is produced by the hydrogenation of nitrobenzene. The reaction takes place in a fluidized bed reactor operating at 270 °C and 20 bar. The excess heat of reaction is removed by a heat transfer fluid passing through tubes in the fluidized be..
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