Concept explainers
(a)
Interpretation:
Estimate whether it is possible for the average gas-phase composition in the tank to be within the explosive limits at any time. Explain you answer.
Concept introduction:
The
Where, the volume (V) occupied by ‘n’ moles of any gas has a pressure (P) at temperature (T) in Kelvin and ‘R’ = Gas constant
(b)
Interpretation:
The temperature at which the gas tank to be at lower explosive limit should be determined.
Concept introduction:
The Ideal Gas Law is defined as,
Where, the volume (V) occupied by ‘n’ moles of any gas has a pressure (P) at temperature (T) in Kelvin and ‘R’ = Gas constant
Antoine equation
Antoine equations describe the relationship between vapor pressure and temperature for pure components. This is a semi-empirical relationship.
(c)
Interpretation:
Why is the tank purged thoroughly with steam after being drained should be explained.
Concept introduction:
The Ideal Gas Law is defined as,
Where, the volume (V) occupied by ‘n’ moles of any gas has a pressure (P) at temperature (T) in Kelvin and ‘R’ = Gas constant
Antoine equation
Antoine equations describe the relationship between vapor pressure and temperature for pure components. This is a semi-empirical relationship.
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EBK ELEMENTARY PRINCIPLES OF CHEMICAL P
- 4. True or False (1) Chlorine demand is the difference between total chlorine and free chlorine (2) In raw wastewater samples, most of nitrogen is in the form of nitrate. (3) If 10 mg/L of NH3-N is converted to nitrate, the nitrate concentration is 10 mg/L as N. (4) Free chlorine consists of hypochlorous acid and hypochlorite. (5) Chloramines is a weaker disinfectant than free chlorine. (6) Na2HPO4 contributes to the orthophosphates. (7) For phosphorus analysis, the purpose of the autoclave is to kill the phosphorus bacteria which interferes colorimetric analysis. (8) Chloride is an effective disinfectant for water and wastewater treatment. (9) "Crown" corrosion is caused by the corrosive action of H₂SO4. (10) Breakpoint chlorination can be used for removal of ammonia.arrow_forwardThe nitrogen content of organic compounds can be determined by the Dumas method.The compound in question is first passed over hot CuO(s): Compound ----> N2(g) + CO2(g) + H2O(g) The gaseous products are then passed through a concentrated aqueous KOH solution to remove the CO2.The remaining gas contains N2 and water vapor.A 0.185-g sample of a compound was treated as above, producing 82.2 mL of N2 saturated with water vapor at 25 °C and 775.0 torr.What is the mass percent of nitrogen in the compound? (The vapor pressure of water at 25 °C is 23.8 torr.)arrow_forwardPlease don't provide handwritten solution .....arrow_forward
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