The diffusion coefficient for horse hemoglobin in water is 1.26 × 10–10 m2 s–1 at 40...
The diffusion coefficient for horse hemoglobin in water is 1.26 × 10–10 m2 s–1 at 40 °C. The viscosity of water at 40 °C is 0.653 × 10–3 kg m–1 s–1. Estimate the radius of hemoglobin assuming the molecule to be spherical and obey Stokes’s law. Comment on the size of Hemoglobin to a corona virus unit which has a diameter of 120 nm.
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The diffusion coefficient for horse hemoglobin in water is 1.26
× 10–10 m2 s–1 at 40...
15. What is the diffusion coefficient (m/s) in water at 25°C of a bovine pancreas ribonuclease...
15. What is the diffusion coefficient (m/s) in water at 25°C of a bovine pancreas ribonuclease (an enzyme that digests RNA) whose molecular weight is 1.369x109 and which is spherical?, Assuming the protein is an unhydrated sphere and its density is 1.414 g/cm'. The viscosity of water is 10- Pas. [Hint: Calculate the radius of the protein and use the Einstein relation to estimate the diffusion coefficient.] (10 pts)
The diffusion coefficient, D, of a rigid spherical molecule is given by the equation KT Dua 6 where n is the viscos...
The diffusion coefficient, D, of a rigid spherical molecule is given by the equation KT Dua 6 where n is the viscosity of the solvent, r is the radius of the sphere, k is the Boltzman constant 1.38 x 10-6 erg.K-, and T is the absolute temperature in kelvins. Assume that this protein is an unhydrated, rigid sphere with a density, p, of 1.35g.cm . Calculate the diffusion coefficient of a 100 kDa protein in a membrane that has an...
The diffusion coefficient for Ca2+ 1n CaO is 10-20 m2/s at 850°C and 10-13 m2/s at...
The diffusion coefficient for Ca2+ 1n CaO is 10-20 m2/s at 850°C and 10-13 m2/s at 2090°C. The gas constant is R-8314 J/(mol-K) 1. Calculate the activation energy (Express your answer to three significant figures.) Q = ( ) kJ/mol 2. Calculate the constant Do. (Express your answer to three significant figures.) m2/s
Suppose that a force of 1 pN is applied to a globular 100 kDa protein. In...
Suppose that a force of 1 pN is applied to a globular
100 kDa protein. In the absence of damping, how fast will the
protein be moving after 1 ns? During this time, how far will the
protein have moved? GIven the damping coefficient quoted in Table
2.2, what is the actual terminal velocity of the protein?
Table 2.2 Physical properties of a globular protein of molecular mass To0 Property Mass Density Volume Radius Drag coefficient 60 pN-s/m Diffusion coefficient...
A water tank filled with solar-heated water at 40°C is to be used for showers in...
A water tank filled with solar-heated water at 40°C is to be used for showers in a field using gravity-driven flow. The system includes 39 m of 1.5-cm-diameter galvanized iron piping with four miter bends (90°) without vanes and a wide-open globe valve. If water is to flow at a rate of 1.2 L/S through the shower head, determine how high the water level in the tank must be from the exit level of the shower. Disregard the losses at...
Water, with density of 1000 kg/m3 and kinematic viscosity of 1.0 x 10- m2/s, is pumped through a ...
Water, with density of 1000 kg/m3 and kinematic viscosity of 1.0 x 10- m2/s, is pumped through a total length of 60 m of pipe from a lower reservoir to a higher reservoir. The inner diameter of the pipe is 30 cm. Both reservoirs are open to the atmosphere, and the water surface of the higher reservoir is 10 m above that of the lower reservoir. The entrance from the lower reservoir to the pipe is sharp-edged, and along the...
H2.3 Consider water at 20°C flowing through a horizontal pipe of diameter 15 cm and length 10 m. ...
H2.3 Consider water at 20°C flowing through a horizontal pipe of diameter 15 cm and length 10 m. The flowrate is 0.021 m3/s and the wall shear stress is 5.76 N/m2. Assume fully developed flow. a. Verify that the flow is turbulent b. Determine the pressure drop [N/m2 c. Estimate the viscous sublayer thickness [mm], i.e., where y+ 5 d. Compare results of part c. with typical pipe roughness (see Table 8.1 in text and comment on implication e. Using...
Water (density = 1000 kg/m3, viscosity = 1.15 x 10-3 N-s/m2) is delivered from a large reservoir ...
Water (density = 1000 kg/m3, viscosity = 1.15 x 10-3 N-s/m2) is delivered from a large reservoir upstream (Section"1") through two mortar lined steel circular pipes arranged in series to another large reservoir downstream (Section "2") as shown in Figure E4.7 The upstream pipe is 80 m long and 0.15 m in diameter, whereas the downstream pipe is 50 m long and 0.1 m in diameter. Both pipes have sharp-edged entrance and exit. Consider both major and minor losses. Determine...
40 N"s/m2 and ?-1000 kg/m3 is flowing through a circular pipe umetric flow rate (Q) of...
40 N"s/m2 and ?-1000 kg/m3 is flowing through a circular pipe umetric flow rate (Q) of the oil is 1*10 m'/s, determine: 1) (2096) Oil with viscosity of with diameter D 0 0.1 m. If the volu a. b. If the flow is laminar or turbulent Th e pressure drop over a 20 m length of p ipe in kPa
1 Dipole Forces Water is a polar molecule. It has an electric dipole strength of p-6-10-30...
1 Dipole Forces Water is a polar molecule. It has an electric dipole strength of p-6-10-30 С . m. This is roughly equivalent to a proton and an electron separated by a distance of d- 4 10-11 m (about the radius of a hydrogen atom) In this problem, we will use Coulomb's law to compare the force between two protons, a proton and a water molecule, and two water molecules. Use the arrangement of the charges shown in the figure...
15. What is the diffusion coefficient (m/s) in water at 25°C of a bovine pancreas ribonuclease (an enzyme that digests RNA) whose molecular weight is 1.369x109 and which is spherical?, Assuming the protein is an unhydrated sphere and its density is 1.414 g/cm'. The viscosity of water is 10- Pas. [Hint: Calculate the radius of the protein and use the Einstein relation to estimate the diffusion coefficient.] (10 pts)
The diffusion coefficient, D, of a rigid spherical molecule is given by the equation KT Dua 6 where n is the viscosity of the solvent, r is the radius of the sphere, k is the Boltzman constant 1.38 x 10-6 erg.K-, and T is the absolute temperature in kelvins. Assume that this protein is an unhydrated, rigid sphere with a density, p, of 1.35g.cm . Calculate the diffusion coefficient of a 100 kDa protein in a membrane that has an...
The diffusion coefficient for Ca2+ 1n CaO is 10-20 m2/s at 850°C and 10-13 m2/s at 2090°C. The gas constant is R-8314 J/(mol-K) 1. Calculate the activation energy (Express your answer to three significant figures.) Q = ( ) kJ/mol 2. Calculate the constant Do. (Express your answer to three significant figures.) m2/s
Suppose that a force of 1 pN is applied to a globular
100 kDa protein. In the absence of damping, how fast will the
protein be moving after 1 ns? During this time, how far will the
protein have moved? GIven the damping coefficient quoted in Table
2.2, what is the actual terminal velocity of the protein?
Table 2.2 Physical properties of a globular protein of molecular mass To0 Property Mass Density Volume Radius Drag coefficient 60 pN-s/m Diffusion coefficient...
A water tank filled with solar-heated water at 40°C is to be used for showers in a field using gravity-driven flow. The system includes 39 m of 1.5-cm-diameter galvanized iron piping with four miter bends (90°) without vanes and a wide-open globe valve. If water is to flow at a rate of 1.2 L/S through the shower head, determine how high the water level in the tank must be from the exit level of the shower. Disregard the losses at...
Water, with density of 1000 kg/m3 and kinematic viscosity of 1.0 x 10- m2/s, is pumped through a total length of 60 m of pipe from a lower reservoir to a higher reservoir. The inner diameter of the pipe is 30 cm. Both reservoirs are open to the atmosphere, and the water surface of the higher reservoir is 10 m above that of the lower reservoir. The entrance from the lower reservoir to the pipe is sharp-edged, and along the...
H2.3 Consider water at 20°C flowing through a horizontal pipe of diameter 15 cm and length 10 m. The flowrate is 0.021 m3/s and the wall shear stress is 5.76 N/m2. Assume fully developed flow. a. Verify that the flow is turbulent b. Determine the pressure drop [N/m2 c. Estimate the viscous sublayer thickness [mm], i.e., where y+ 5 d. Compare results of part c. with typical pipe roughness (see Table 8.1 in text and comment on implication e. Using...
Water (density = 1000 kg/m3, viscosity = 1.15 x 10-3 N-s/m2) is delivered from a large reservoir upstream (Section"1") through two mortar lined steel circular pipes arranged in series to another large reservoir downstream (Section "2") as shown in Figure E4.7 The upstream pipe is 80 m long and 0.15 m in diameter, whereas the downstream pipe is 50 m long and 0.1 m in diameter. Both pipes have sharp-edged entrance and exit. Consider both major and minor losses. Determine...
40 N"s/m2 and ?-1000 kg/m3 is flowing through a circular pipe umetric flow rate (Q) of the oil is 1*10 m'/s, determine: 1) (2096) Oil with viscosity of with diameter D 0 0.1 m. If the volu a. b. If the flow is laminar or turbulent Th e pressure drop over a 20 m length of p ipe in kPa
1 Dipole Forces Water is a polar molecule. It has an electric dipole strength of p-6-10-30 С . m. This is roughly equivalent to a proton and an electron separated by a distance of d- 4 10-11 m (about the radius of a hydrogen atom) In this problem, we will use Coulomb's law to compare the force between two protons, a proton and a water molecule, and two water molecules. Use the arrangement of the charges shown in the figure...
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