LIBRO DE BALANCE Y ENERGÍA: CAPÍTULO 3 – PROBLEMAS PROPUESTOS 1. En una industria de champú se procesan 1735 lb/hora de producto con una densidad de 0,944 g/cm3. Determine:

LIBRO DE BALANCE Y ENERGÍA: CAPÍTULO 3 – PROBLEMAS PROPUESTOS 1. En una industria de champú se procesan 1735 lb/hora de producto con una densidad de 0,944 g/cm3. Determine: …

Continue Reading LIBRO DE BALANCE Y ENERGÍA: CAPÍTULO 3 – PROBLEMAS PROPUESTOS 1. En una industria de champú se procesan 1735 lb/hora de producto con una densidad de 0,944 g/cm3. Determine:

A rigid insulated vessel contains 12 kg of oxygen at 200 kPa, 280 K separated by a membrane from 26 kg carbon dioxide at 400 kPa, 360 K. The membrane is removed and the mixture comes to a uniform state. Find the final temperature, pressure and the entropy generation.

A rigid insulated vessel contains 12 kg of oxygen at 200 kPa, 280 K separated by a membrane from 26 kg carbon dioxide at 400 kPa, 360 K. The membrane…

Continue Reading A rigid insulated vessel contains 12 kg of oxygen at 200 kPa, 280 K separated by a membrane from 26 kg carbon dioxide at 400 kPa, 360 K. The membrane is removed and the mixture comes to a uniform state. Find the final temperature, pressure and the entropy generation.

The rotary vacuum filter is the most common piece of equipment used for the extraction of penicillin, and is used after fermentation in order to remove the Penicillium chrysogenum spores from the penicillin-containing medium. Continuous rotary vacuum filtration can be analysed by considering each revolution of the drum as a stationary batch filtration. Per revolution, each cm2 of filter cloth is used to form cake only for the period of time it spends submerged in the liquid reservoir. A rotary drum vacuum filter with drum diameter 2 m and filter width 2 m is used to filter P. chrysogenum spores from the aqueous suspension. The pressure drop is kept constant at 5 psi; the filter operates with 30% of the filter cloth submerged. Laboratory batch tests with a 10 cm2 filter have shown that 500 ml of slurry can be filtered in 23 min at a pressure drop of 12 psi. Previous studies have shown that the filter cake of P. chrysogenum is significantly compressible, and the cake compressibility, s, is 0.5. Assume that the resistance due to the filter medium is negligible. Determine the drum speed required (in revolutions per hour, rph) to produce 20 m3 of filtered liquid per hour.

The rotary vacuum filter is the most common piece of equipment used for the extraction of penicillin, and is used after fermentation in order to remove the Penicillium chrysogenum spores…

Continue Reading The rotary vacuum filter is the most common piece of equipment used for the extraction of penicillin, and is used after fermentation in order to remove the Penicillium chrysogenum spores from the penicillin-containing medium. Continuous rotary vacuum filtration can be analysed by considering each revolution of the drum as a stationary batch filtration. Per revolution, each cm2 of filter cloth is used to form cake only for the period of time it spends submerged in the liquid reservoir. A rotary drum vacuum filter with drum diameter 2 m and filter width 2 m is used to filter P. chrysogenum spores from the aqueous suspension. The pressure drop is kept constant at 5 psi; the filter operates with 30% of the filter cloth submerged. Laboratory batch tests with a 10 cm2 filter have shown that 500 ml of slurry can be filtered in 23 min at a pressure drop of 12 psi. Previous studies have shown that the filter cake of P. chrysogenum is significantly compressible, and the cake compressibility, s, is 0.5. Assume that the resistance due to the filter medium is negligible. Determine the drum speed required (in revolutions per hour, rph) to produce 20 m3 of filtered liquid per hour.

For the copper-nickel phase diagram in the figure below, find the compositions of the liquid and solid phases for a nominal composition of 60% Ni and 40% Cu at 1316WC (2400 degree F). Use the inverse lever rule to determine the proportions of liquid and solid phases present in the alloy.

For the copper-nickel phase diagram in the figure below, find the compositions of the liquid and solid phases for a nominal composition of 60% Ni and 40% Cu at 1316WC…

Continue Reading For the copper-nickel phase diagram in the figure below, find the compositions of the liquid and solid phases for a nominal composition of 60% Ni and 40% Cu at 1316WC (2400 degree F). Use the inverse lever rule to determine the proportions of liquid and solid phases present in the alloy.

Realiza el diagrama de composición fraccionaria para el ácido nitroso (Ka= 7.1 x 10-4) en Excel desde un pH=1 hasta pH=14. Muestra la fórmula derivada para α0 y α1. Incluye ejemplos para sus cálculos a un pH 3 y un pH 12.

Realiza el diagrama de composición fraccionaria para el ácido nitroso (Ka= 7.1 x 10-4) en Excel desde un pH=1 hasta pH=14. Muestra la fórmula derivada para α0 y α1. Incluye…

Continue Reading Realiza el diagrama de composición fraccionaria para el ácido nitroso (Ka= 7.1 x 10-4) en Excel desde un pH=1 hasta pH=14. Muestra la fórmula derivada para α0 y α1. Incluye ejemplos para sus cálculos a un pH 3 y un pH 12.

Suppose 1.00 mol of CO2 and 1.00 mol of COF2 are placed in a very large vessel at 25°C, and a catalyst for the gasphase reaction 2COF2 ⇌ CO2 + CF4 is added. Use data in the Appendix to find the equilibrium amounts.

Suppose 1.00 mol of CO2 and 1.00 mol of COF2 are placed in a very large vessel at 25°C, and a catalyst for the gasphase reaction 2COF2 ⇌ CO2 +…

Continue Reading Suppose 1.00 mol of CO2 and 1.00 mol of COF2 are placed in a very large vessel at 25°C, and a catalyst for the gasphase reaction 2COF2 ⇌ CO2 + CF4 is added. Use data in the Appendix to find the equilibrium amounts.

Problem 2 Mercaptans, hydrogen sulfide, and other sulfur compounds are removed from natural gas by various so-called “sweetening processes” that make available otherwise useless “sour” gas. As you know H2S is toxic in very small quantities and is quite corrosive to process equipment. A proposed process to remove H2S is by reaction with SO2 H2S (g) + SO2 (g) → S (s) + H2O (g) In a test of the process, a gas stream containing 20% H2S and 80% CH4, was combined with a stream of pure SO2. The process produced 156 lb-mol of S(s), and in the product gas the ratio of SO2 to H2S was equal to 3, and the ratio of H2O to H2S was 10 a) Write the balanced reaction. b) Calculate the amount (Ib-mol) of H2S and SO2 in the feed. is in excess. d Determine the amount of product fomed (lb-mol) and its composition Product P 20% H2S–+ 80% CH4 ngoa nizs nH2o nCHa Reactor SO2 156 Ib-mol

Problem 2 Mercaptans, hydrogen sulfide, and other sulfur compounds are removed from natural gas by various so-called "sweetening processes" that make available otherwise useless "sour" gas. As you know H2S…

Continue Reading Problem 2 Mercaptans, hydrogen sulfide, and other sulfur compounds are removed from natural gas by various so-called “sweetening processes” that make available otherwise useless “sour” gas. As you know H2S is toxic in very small quantities and is quite corrosive to process equipment. A proposed process to remove H2S is by reaction with SO2 H2S (g) + SO2 (g) → S (s) + H2O (g) In a test of the process, a gas stream containing 20% H2S and 80% CH4, was combined with a stream of pure SO2. The process produced 156 lb-mol of S(s), and in the product gas the ratio of SO2 to H2S was equal to 3, and the ratio of H2O to H2S was 10 a) Write the balanced reaction. b) Calculate the amount (Ib-mol) of H2S and SO2 in the feed. is in excess. d Determine the amount of product fomed (lb-mol) and its composition Product P 20% H2S–+ 80% CH4 ngoa nizs nH2o nCHa Reactor SO2 156 Ib-mol

Show how each of the following compounds could be prepared using the given starting material, any necessary inorganic reagents, and any necessary organic compound that has no more than four carbons:

Show how each of the following compounds could be prepared using the given starting material, any necessary inorganic reagents, and any necessary organic compound that has no more than four…

Continue Reading Show how each of the following compounds could be prepared using the given starting material, any necessary inorganic reagents, and any necessary organic compound that has no more than four carbons: