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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?
Dependence of measured energy on temperature for a pyrometer - Plot the volumetric flow rate vs. height
Draw circuit diagrams and show polarity markings.
Coal gasification is carried out at 850 °C and 40 atmospheres pressure, by reaction of coal with steam and oxygen. The empirical formula of the coal is roughly CH0.8S0.013. What materials of construction would you recommend for:
question 1a handling operations for solidpowder substances are often a source of dust generation and are a source of
Determine the hysteresis and eddy-current losses separately at both frequencies.
Under these conditions, what is the depreciation cost during the sixth year of the total life if straight-line depreciation is used?
For parts c and d, compare with the saturated molar volumes reported in the NIST Web Book.
The ship must unload 1000 metric tons within 5 hours to avoid demurrage charges. Estimate the power required by the pump. Take the pump efficiency as 70%. Physical properties of toluene: density 874 kg/m3, viscosity 0.62 mNm-2 s.
Find the value of Ia for which the generator efficiency is a maximum.
Engineering Process Design. Please provide complete and correct solution done on computer or by hand. Please, emphasis on correct and scientific solution. This is all the information provided.
Calculate the excess enthalpy of mixing for a solution that contains 60% by mol hydrazine at 20 °C.
A chord subtends an angle of 68° at the centre of a circle of radius 200mm. Find the length of the chord.
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