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- Particle size may be less important than the surface characteristics of the nanomaterial. (A) True B) FalseIn the following figure, which parameter of van Deemter equation is involved in these variations. Which curve of them would provide the best separation of analytes and at what linear velocity?Answer each of the following by True or False. Q1) Solution resistance varies as the frequency of the applied voltage charges, then resistance is normally named as impedance.( ) Q2) Physisorption or physical adsorption is a type of adsorption in which the adsorbate adheres to the surface only through Van der Waals.( ) Q3) Michelson interferometer is considered energy dispersive spectrometer for spectral analysis.( ) Q4) lodine when mixed with starch gives deep red complex.( ) Q5) (BET) theory aims to explain the physical adsorption of gas.( ) Q6) The iodination of acetone can be easily investigated because iodine has a deep green color.( ) Q7) Activated charcoal or activated carbon is carbon material that has been processed to contain many large pores creating a very large surface area.( )
- (c) Do you expect the diffusion coefficient typically to be higher for interstitial diffusion or for substitutional diffusion? There is more than one correct answer. One reason is sufficient. I encourage you to challenge yourself to think of two. (d) What relationship do you expect to find between the diffusion coefficient for substitutional diffusion and the equilibrium melting temperature?What other method besides conductivity can be used to determine CMC (critical micelle concentration)?The units of ebullioscopic constant is _______.
- When 10 mL of water at 20oC is placed in an Ostwald viscometer, it takes 136.5 s for the liquid levelto drop from the first mark to the second. For 10 mL of hexane at 20oC in the same viscometer, thecorresponding time is 67.3 s. Find the viscosity of hexane at 20oC and 1 atm.(ηH2O=1.002 cP, dH2O= 0.998 g/cm3, dC6H14=0.659 g/cm3)What is the surface tension of benzene(in micro-Newton/m), if it rises to a height of 1.06299 inch in a capillart tube with a circumference of 1.570796 mm. The density of benzene is 54.477 lb/ft³. With the contact angle to be 0°.An oil is flowing between tank A from a cast iron pipe with a diameter of 15 cm and a length of 150 m to point B, at an elevation of 30 m. What pressure do we have inside tank A. so that 13 1/ ves Yoli=0.84 T /m3 and kinematic viscosity 2.1* 10– 6 m2/ sDipò sit A tancat
- One of the most important reactions in biology is photosynthesis. In this complex chemical process, plants combine molecules of carbon dioxide and water to create glucose and oxygen. The reaction looks something like this: CO2 + H20 – C6H1206 + 02 Of course the number of atoms don't balance on the two sides. You might be able to intuit your way to the correct counting (stoichiometry), but let's do it systematically by setting up equations. (a) Write the reaction as a CO2 + b H20 -→ c CGH1206 + d O2 where a, b, c, and d are meant to be integers adjusted so that the number of each kind of atoms balance on each side. For this reaction, we have three kinds of atoms that must balance: carbon (C), hydrogen (H), and oxygen (0). Write three equations for a, b, c, and d that, if satisfied, will guarantee that the number of atoms of each kind are the same on each side of the reaction. (b) Find the smallest set of integers that will satisfy these equations. First, solve for a. (c) Solve for b.Can you please fill the rest of tghe data based on the on inforamtion you have and answer Average concentratuon of NaOH Standard deviation of concentrationFor the first picture, please find the values of slope, y-intercept, Pearson coefficient, activation energy in kJ/mol, and the collission frequency factor While help me also with the second picture. Thanks a lot!