Concept explainers
(a)
Interpretation:
Draw the flow chart and perform the degree of freedom analysis.
Concept introduction:
The degree of freedom is given by the equation as,
Where,
(b)
Interpretation:
Prove that reported percentages are not correct.
Concept introduction:
The degree of freedom is given by the equation as,
Where,
(c)
Interpretation:
Prove that results are correct and calculate the percentage air fed and fractional conversion of pentane.
Concept introduction:
The degree of freedom is given by the equation as,
Where,
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EBK ELEMENTARY PRINCIPLES OF CHEMICAL P
- 3. Given: Soda and lime are added to a glass batch in the form of soda ash (Na,CO,) and limestone (CaCO). During heating, these two ingredients decompose to give off carbon dioxide (CO₂), the resulting products being soda and lime. Find: Compute the weight of soda ash and limestone that must be added to 110 lb of quartz (SiO₂) to yield a glass of composition 72 wt% SiO₂, 16 wt% Na₂O, and 12 wt% Cao. Solution:arrow_forwardSolid calcium (CaF2) reacts with sulfuric acid to form solid calcium sulfate and gaseous hydrogen fluoride. The HF is then dissolved in water to form hydrofluoric acid. A source of calcium fluoride is fluorite ore containing 96 wt% CaF2 and 4% SiO2. In a typical hydrofluoric acid manufacturing process, fluorite ore is reacted with 93 wt% aqueous sulfuric acid, supplied 15% in excess of the stoichiometric amount. Ninety-five percent of the ore dissolves in the acid. Some of the HF formed reacts with the dissolved silica in the reaction 6 HF + SIO2 (aq) – H2SİF6 (9) + 2 H2O (1) The hydrogen fluoride exiting from the reactor is subsequently dissolved in enough water to produce 60 wt% hydrofluoric acid. Calculate the quantity of fluorite ore needed to produce a metric ton of acid. Express your answer into three significant figures.arrow_forwardA solid fuel, described by the chemical structure below, is combusted in 10% excess air. If necessary, clearly state any assumptions required to develop your solution. H Н —с — N — с — s — н | || 0 = C S H (a) Determine the mass feed rate (g/min) of the fuel such that 10,000 m³/min of total flue gas is generated at 1500 °C and 1 atm. (b) Determine the effluent SO2 concentration (ppm,) at STP and dry conditions.arrow_forward
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