Doppler ultrasound can be used to measure the speed of blood in the body. If there is a partial constriction of an artery, where would you expect blood speed to be greatest, at or nearby the constriction? What are the two distinct causes of higher resistance in the constriction?

Q: Ostwald`s dilution law can be re-arranged as

A: Welcome to bartleby ! Introduction :  We have to rearrange ostwald's dilution law.

Q: What is a fluid? Discuss some examples of fluids and give an example each Draw a graph (not to…

A: "Since there are multiple sub-parts in this question and it is not mentioned that which one has to…

Q: Which of the following is true about strain? A It is the ability of the material to absorb force…

A: This is the concept of general chemistry

Q: For whole blood flowing in a capillary of radius 1.9x10-4 cm, estimate the maximum velocity for…

A:

Q: why does small particles have higher Brownian diffusion rates than larger particles.

A: Brownian motion is the random movement of microscopic particle  suspended in gas or liquid ,caused…

Q: Q2- Choose the correct answer for the following (Justify your answer): 1- The necking region is the…

A: Necking area is describe the localized reduction of cross-sectional area of specimen under the…

Q: based on the solution of the Fick's second law of diffusion, show that the ink drop in a wet paper…

A: According to Fick’s second law the concentration changes with respect to time. If we consider Fick’s…

Q: A tank with 43.2 kg of water is leaking at a rate of 0.0135 kg/s. How many hours will it take untile…

A: Rate of leakage = 0.0135 Kg/s Amount of water in tank = 43.2 kg Time require for the tank to become…

Q: Write "TRUE" if the statement is correct. Else, write the correct answer based on the underlined…

A:

Q: can diffusion be reversed

A: Yes diffusion can be reversed.

Q: Carbon tetrachloride (CCl) is diffusing through benzene (CgHe), as the drawing illustrates. The…

A: We know that mass is a scalar quantity and is conserved, the mass flow rate is the same at all…

Q: ssing through a medium causes areas of:

A: This question is related to waves.

Q: A suspension of protein molecules in water (molar mass of 1.05x10° g/mol and radius 3.40x10 m) is…

A: Given:-             molar mass = 1.05×105 g/mol              radius = 3.40×10-9 m

Q: In normal-phase HPLC chromatography, the stationary phase is polar and the mobile phase is nonpolar.…

A: Necessities of several parameters for efficient analysis of analytical samples by means of hplc are…

Q: 7) Calculate the viscosity (micropoises) of molecular oxygen at 273.2 K and 1 bar. The molecular…

A: From given data's Initially we are calculating mass of molecule of oxygen and then using viscosity…

Q: calculate the average end-to-end distance for the ideal chain?

A: Given Data: Number of C-C bond present in the polymer chain, N = 250000                       Bond…

Q: The viscosity coefficient of gaseous chlorine at 1 atm pressure and 20 ᵒC is 147.0 micropoise. Find…

A: The expression to calculate the collisional cross-section of a molecule is:…

Q: Prove that for non-steady state of diffusion the penetration of a specified concentration is found…

A: Diffusion is the process of mixing up of gas into other gaseous substances. The rate of diffusion is…

Q: A diffusion controlled reaction takes place in a solvent whose viscosity can be manipulated by…

A: The solution is given below -

Q: DETERMINATION OF ABSOLUTE VISCOSITY USING OSTWALD VISCOMETER: A group of students enrolled in a…

A: Given: density of water at 296 K = 997.532  kg/m3 = 0.9975 g/mL absolute viscosity of water at 296 K…

Q: 1. How can the water displacement method be used to measure the density of tan irregularly-shaped…

A: Water displacement method is a method to determine the volume of any solid substance . In this…

Q: surfaces?

A: Microscopes that are used to view metal surfaces are scanning tunneling microscopes.    It is termed…

Q: Equal lengths of magnesium ribbons are taken in test tubes A and B. hydrochloric acid is added to…

A: Hydrogen gas is produced when the metal reacts with acid. The production of hydrogen gas depends…

Q: How does temperature affect diffusion rate, and why?

A: Diffusion is the movement of substance down its concentration gradient. Particles travels from…

Q: Use the dimensional analysis method, convert 10000000 pound-force in to megapascal.

A: 1 pound-force = 0.00689 MPa

Q: Find the molar conductivity according to these data and draw a graph.

A: The formula for calculating molar conductivity is:           -----(1)

Q: Please Answer them ALL ASAP for an upvote. Thankyou. Q. Compute for the surface tension of a force…

A:

Q: Blood is flowing through an artery of radius 2 mm at a rate of 40 cm/s. Determine the flow rate and…

A: The flow rate calculation:  We have to use the formula: Q = V x A  Where Q is the flow rate, V is…

Q: Based on your results which has the greater influence on evaporation rate – molar mass or strength…

A:

Q: diffusion

A: diffusion is the process of movement of molecules under a concentration gradient. It is an important…

Q: :Q9: The defects importance are Improving chemical properties of the material Enhancing mechanical…

A: defects often determine properties of material. Defects can change physical properties of material…

Q: A particular liquid crystalline substance has the phasediagram shown in the figure. By analogy with…

A: Phase diagram: Under different temperature and pressure, physical states of the substance that are…

Q: Capillary action is the process of water moving up plants, against gravity. Two different properties…

A: Explained as follows

Q: What are the factors affecting capillary height ? Describe what is happens

A: Capillary tube is a narrow tube with a tiny bore. The process of rise or fall of the water or liquid…

Q: is molar volume dependent on a sample size? Why or why not.

A: A question based on molar volume, which is to be accomplished.

Q: °C, the capillary rise at sea level for th air in a tube with inside diameter 0. e contact angle is…

A:

Q: What is the surface tension of benzene(in micro-Newton/m), if it rises to a height of 1.06299 inch…

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Q: We can measure the density of a liquid using alan Ostwald viscometer Triple beam balance Westphal…

A: The triple beam balance is an instrument used to measure mass very precisely.so it can not measure…

Q: From the equivalent molar conductance at infinite dilution of potassium chloride (0.0149), sodium…

A: The conducting power of all the ions generated by dissolving one gram equivalent of an electrolyte…

Q: What is dispersion statistics? Why is it important?

A: Answer - According to the question - Dispersion is a statistical term that describes the size of the…

Q: 4) The viscosity of helium at 1 bar and 0 °C is 1.88 x 10-5 Pa-s. Calculate the collision diameter…

A: Collision diameter is defined as the distance between the centres of the two molecules at the point…

Q: The diffusion coefficient of valine in water at 298 KKis 0.831×10−9m2⋅s−10.831×10−9m2⋅s−1. Determine…

A: The equation of time taken by a molecule is derived from Pythagorean theorem under assumption that…

Q: Use the particle model to explain how the size of the particles would affect the rate of diffusion.

A: * particle  therory of matter is a model used to describe movements and arrangements  of atom. *…

Q: how do you do the calculations for rate of diffusion for this table

A: A question based on general chemistry that is to be accomplished.

Q: Does saturated fatty acid has density and viscosity at room temperature. If has what are viscosity…

A: A saturated fatty acid is a fatty acid that does not contain any double bonds.

Q: Determine how much is the capillary depression to be observed if the capillary tube to be used has…

A: Answer is explained below.  Given that, diameter of the capillary tube d = 1.5×10-4 m. Thus, radius…

Q: 6. In the Ostwald viscometer the use of capillary tube is * (a) To avoid streamline flow O (b) To…

A: Ostwald viscometer works on the principle of poiseuille's principle  i.e. the rate of flow of a…

Q: diffusion

A: