The van deemter equation shows the efficiency of chromatographic coulmns.
It shows relationship between plate height and linear velocities
So I and II are correct
Answer is option B
Thank you
11. The van Deemter equation H=A+B/u + Cu describes the efficiency of chromatographic columns II. relationship...
7.In the van Deemter equation, H=A + B/ux+ Cux, which of the following is true? A) The mass transfer term, referring to equilibration time, is proportional to flow rate. B) The parameters A, B, and C, depend on the stationary phase only. C)The longitudinal diffusion term is constant across linear flow rates. D) The multiple path term is important for open tubular columns. E) The term A = 0 for packed columns.
ILLALLIC ULLLLS LL 11 13 U bout 2) There is a linear relationship between the age of a certain model of car in years) and its price in hundreds of dollars). Partial analysis of data on this relationship provides the following: $x =1.421 $ = 31.159 Minimum x-value = 2 years Maximum x-value = 5 years Parameter Estimate Std. Err. Intercept 195.47 15.240 ob Slope -20.26 2.800 Which statement(s) is (are) true? I. The correlation coefficient, r=0.924. II. According to...
(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...
please answer it quikly this quizz has time frame Topic Task 11: Regression and Correlation Data Sheet This data and record sheet is required for you to complete the online Topic Task. Please print this sheet BEFORE you attempt to open the Topic Task 11. You will need this information in front of you when doing the task. You will also need a pencil/pen and your calculator Do not clear the data from your calculator between questions, as you will...