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B) If a sample of conical particles of 53.8 g of sand with a density of...
2. Comparing sedimentation and flotation um spherical floc particles with a density of 1.15 g/cm3 pm...
2. Comparing sedimentation and flotation um spherical floc particles with a density of 1.15 g/cm3 pm spherical floc particles with a density of 1.15 g/cm Calculate the settling velocity of 12 in summer (T-20°C) and in winter (T 4°C). Calculate the rise velocity of the same floc particle after the attachment of a single air bubble of 40 um diameter for the same two temperatures. The density of air is 1.27 kg/m3 at 4°C and 1.19 kg/m3 at 20°C Comment...
Particles having size of 0.1mm, a shape factor of 0.8 and a density of 1650 kg/m'...
Particles having size of 0.1mm, a shape factor of 0.8 and a density of 1650 kg/m' are to be fluidized using air at 25°C (p=2.374 SI, u=1.45x10ʻSI) and 202.65kPa (abs pressure). The bed's height at minimum fluidizing conditions is Lmf=1.6m. The bed diameter is 0.5m and the bed height when the particles are at rest is Lo=1m. 3.1. What is the mass of particles to be used ? 3.2. Calculate the minimum void fraction of the fluidized bed? 3.3. Calculate...
PROBLEM4 (a) Write an expression for the mass density ρ(r) of a point particle with a...
PROBLEM4 (a) Write an expression for the mass density ρ(r) of a point particle with a mass m at a position r; How much is the volume integral of ρ over the entire space? (b) What is the mass density of a system of two point particles with mass m each. One of the particle is at the origin of the coordinate system and the other one is at ä. How much is the integral of the density over the...
Copper can be cemented onto iron particles by the reaction. Cu2+ + Fe = Cu +...
Copper can be cemented onto iron particles by the reaction. Cu2+ + Fe = Cu + Fe2+. A dilute copper solution containing 0.50 g/L of copper is flowed continuously at a rate of 1 m3/h through a stirred tank reactor of volume 10 m3 containing 10 kg of suspended spherical iron particles with a diameter of Imm. The mass transfer coefficient of Cu2+ is 6 x 10-3 cm sl. (i) Calculate the concentration of copper ions in the discharge solution...
Answers (a) A = 53.8 m2, edge has length 7.34 m, (b) 50,000 V/m, (c) 13.8...
Answers (a) A = 53.8 m2, edge has length 7.34 m, (b) 50,000
V/m,
(c) 13.8 μJ
Note: For (b) I used E = σ / (κ ε0 ) and in (c) I used U =
Q2/(2C)
2. Teflon-Filled Capacitor A parallel-plate capacitor is made by placing a 10 μm layer of Teflon between two aluminum sheets. The dielectric constant of Teflon is K = 2.1 . The capacitance is C= 100 μF. The capacitor is square in shape. A...
write nicely thank you bruh this for sand (b) A soil sample from a proposed...
write nicely thank you bruh
this for sand
(b) A soil sample from a proposed road construction in Segamat, Johor was sent to a Geotechnical Laboratory UTHM, for a compaction test. The results of compaction test obtained using modified Proctor compaction test is shown in Figure Q4 (b). 3 hi HELP ME! Predict the maximum dry density (Pmax), optimum moisture content (OMC), the dry density at 95% compaction and the range of moisture content at 95% compaction on dry...
/15 COMPUTATIONAL QUESTIONS 1. Anundisturbed soil sample has a specific gravity of27, anostre cottnt of 10.5% and a...
/15 COMPUTATIONAL QUESTIONS 1. Anundisturbed soil sample has a specific gravity of27, anostre cottnt of 10.5% and a void ratio of 0.63. What is the degree of saturation? (5 pts) 2. A soil sample has a total mass of 23.3g, a volume of 12 cm, and an oven dry mass of 212g The volume of solids in the soil sample is 848 cm. What is the void ratio of this soil sample? (S pts.) 3. 2 soils samples were brought...
2. Uniform, steady-state ultraviolet radiation impinges on the surface of a semi-infinite silicon sample in which n-1014 cm3, producing an excess-carrier density at the surface p(0)(0 1011 cm3. Given...
2. Uniform, steady-state ultraviolet radiation impinges on the surface of a semi-infinite silicon sample in which n-1014 cm3, producing an excess-carrier density at the surface p(0)(0 1011 cm3. Given further that τ-lụs, and that the spatial origin is at the irradiated surface. (a) Calculate the hole and electron diffusion currents at the surface (i.c.x-0) and at x -L (b) Since the sample is open-circuited, the total current density at x L must be zero. That is, the carrier distributions must...
(1) Length of graphs a) Let a path C be given by the graph of y g(x), a 3 < b, with a piecewise C...
Please solve these three questions!
(1) Length of graphs a) Let a path C be given by the graph of y g(x), a 3 < b, with a piecewise C1 function g : [a, b - IR. Show that the path integral of a continuous function f: IR2- R over the path C is b) Let g : [a, b] - IR be a piecewise C1 function. The length of the graph of g on (t, g(t)). Show that [a,b]...
solve problem 1 Problem 1: In is commonly accepted that the most complex step of a...
solve problem 1
Problem 1: In is commonly accepted that the most complex step of a catalytic process is the diffusion within the catalyst particle. On the other hand diffusion of reaction product is depended on the shape and structure of the catalyst pellets. Considering the following catalytic reaction: AB It is requested to derive the expressions for dimensionless (normalized) concentration profile of the reactant (A) for the following two shapes of a catalyst: 1) A slab geometry (ii) A...
2. Comparing sedimentation and flotation um spherical floc particles with a density of 1.15 g/cm3 pm spherical floc particles with a density of 1.15 g/cm Calculate the settling velocity of 12 in summer (T-20°C) and in winter (T 4°C). Calculate the rise velocity of the same floc particle after the attachment of a single air bubble of 40 um diameter for the same two temperatures. The density of air is 1.27 kg/m3 at 4°C and 1.19 kg/m3 at 20°C Comment...
Particles having size of 0.1mm, a shape factor of 0.8 and a density of 1650 kg/m' are to be fluidized using air at 25°C (p=2.374 SI, u=1.45x10ʻSI) and 202.65kPa (abs pressure). The bed's height at minimum fluidizing conditions is Lmf=1.6m. The bed diameter is 0.5m and the bed height when the particles are at rest is Lo=1m. 3.1. What is the mass of particles to be used ? 3.2. Calculate the minimum void fraction of the fluidized bed? 3.3. Calculate...
PROBLEM4 (a) Write an expression for the mass density ρ(r) of a point particle with a mass m at a position r; How much is the volume integral of ρ over the entire space? (b) What is the mass density of a system of two point particles with mass m each. One of the particle is at the origin of the coordinate system and the other one is at ä. How much is the integral of the density over the...
Copper can be cemented onto iron particles by the reaction. Cu2+ + Fe = Cu + Fe2+. A dilute copper solution containing 0.50 g/L of copper is flowed continuously at a rate of 1 m3/h through a stirred tank reactor of volume 10 m3 containing 10 kg of suspended spherical iron particles with a diameter of Imm. The mass transfer coefficient of Cu2+ is 6 x 10-3 cm sl. (i) Calculate the concentration of copper ions in the discharge solution...
Answers (a) A = 53.8 m2, edge has length 7.34 m, (b) 50,000
V/m,
(c) 13.8 μJ
Note: For (b) I used E = σ / (κ ε0 ) and in (c) I used U =
Q2/(2C)
2. Teflon-Filled Capacitor A parallel-plate capacitor is made by placing a 10 μm layer of Teflon between two aluminum sheets. The dielectric constant of Teflon is K = 2.1 . The capacitance is C= 100 μF. The capacitor is square in shape. A...
write nicely thank you bruh
this for sand
(b) A soil sample from a proposed road construction in Segamat, Johor was sent to a Geotechnical Laboratory UTHM, for a compaction test. The results of compaction test obtained using modified Proctor compaction test is shown in Figure Q4 (b). 3 hi HELP ME! Predict the maximum dry density (Pmax), optimum moisture content (OMC), the dry density at 95% compaction and the range of moisture content at 95% compaction on dry...
/15 COMPUTATIONAL QUESTIONS 1. Anundisturbed soil sample has a specific gravity of27, anostre cottnt of 10.5% and a void ratio of 0.63. What is the degree of saturation? (5 pts) 2. A soil sample has a total mass of 23.3g, a volume of 12 cm, and an oven dry mass of 212g The volume of solids in the soil sample is 848 cm. What is the void ratio of this soil sample? (S pts.) 3. 2 soils samples were brought...
2. Uniform, steady-state ultraviolet radiation impinges on the surface of a semi-infinite silicon sample in which n-1014 cm3, producing an excess-carrier density at the surface p(0)(0 1011 cm3. Given further that τ-lụs, and that the spatial origin is at the irradiated surface. (a) Calculate the hole and electron diffusion currents at the surface (i.c.x-0) and at x -L (b) Since the sample is open-circuited, the total current density at x L must be zero. That is, the carrier distributions must...
Please solve these three questions!
(1) Length of graphs a) Let a path C be given by the graph of y g(x), a 3 < b, with a piecewise C1 function g : [a, b - IR. Show that the path integral of a continuous function f: IR2- R over the path C is b) Let g : [a, b] - IR be a piecewise C1 function. The length of the graph of g on (t, g(t)). Show that [a,b]...
solve problem 1
Problem 1: In is commonly accepted that the most complex step of a catalytic process is the diffusion within the catalyst particle. On the other hand diffusion of reaction product is depended on the shape and structure of the catalyst pellets. Considering the following catalytic reaction: AB It is requested to derive the expressions for dimensionless (normalized) concentration profile of the reactant (A) for the following two shapes of a catalyst: 1) A slab geometry (ii) A...
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