In cohesive sentences explain the factors affecting Van Deemter equation and its practical significance in chromatography.
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In cohesive sentences explain the factors affecting Van Deemter equation and its practical significance in chromatography.
In cohesive sentences explain how Size Exclusion Chromatography (SEC) works.
(TCD) including a schematic diagram. Which carrier gases are the most suitable for TCD. Explain why? Define the factors affecting band spreading using the Van Deemter3 equation Why is derivatization performed in gas chromatography. Describe 3 one derivatization reaction What is end-capping. Why is it used in liquid chromatography What is the signal noise ratio? What values are appropriate for (A) qualitative analysis (B) quantitative analysis? Q2(a) 3 (iv) (TCD) including a schematic diagram. Which carrier gases are the most...
Understand and be able to explain each of the terms in the Purnell equation (N, α, and k) and the van Deemter equation (A, B, C, μx). Know how changing these factors will affect the separation (broader/narrower peaks, longer time, shorter time, separation between peaks)
Microbial death rate Complete the sentences to test your knowledge of factors affecting microbial death rate. organic concentration The effectiveness of a particular microbicidal agent is governed by several factors besides time The of microbes affects the action of an agent, as of the population. does the temperature The as well as the level of the environment will also influence the action of microbicidal agents. inorganic composition The of the agent as well as its against microbes also play a...
About <Kuo-Automatic_Control_Systems> The Matlab Practical Homework : 1. Try the following expression and explain its meaning. >>num=[7 9 12]; >>den=conv(poly([O - 7]),[1 10 100]); >>[A,B,C]=residue(num,den) 2.What is the command to execute the in- put of polynomial P1 = (s+2) (s+5) 65+6)? 3.Find the root of equation 5s4 + 753 +9s2 -3s+2 = 0
2. One mole of a monoatomic van der Waals gas obeys the equation of state and its internal energy is expressed as U-Суг_ _ where Cv is the molar isochoric heat capacity of an ideal gas. The gas is initially at pressure p and volume V. (i) Explain the physical meaning of the parameters a and b in the equation of state of the gas (ii) Calculate the heat transferred to the gas during reversible isothermic expansion to the volume...
Q2. a) Explain the penetration test carried out on bitumen, state its significance and draw the test apparatus. b). Mention the main factors considered in the choice of construction materials at the design office – is any of them more important than the other? c). What factors affect the weldability of steel? d). Consider the iron value chain from material extraction to disposal, at what point according to your assessment is the most energy used? As a design engineer, at...
(a) One mole of a monoatomic van der Waals gas obeys the equation of state A3. ) (V-b)=RT (p+ and its internal energy is expressed as U CvT where Cv is the molar isochoric heat capacity of an ideal gas. The gas is initially at pressure p and volume V (i) Explain the physical meaning of the parameters a and b in the equation of state of the gas (ii) Write down the equation that defines entropy in thermodynamics. Define...