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WorksheetsCatalyst Characterization: Chemical Techniques 17 10 2024
Total questions: 10
Worksheet time: 5mins
The Derby -Scherer equation's application is limited based on
Pore volume
Particle size
Surface area
Diffraction Angle
Which technique is likely to have produced the image?
X Ray diffraction
X ray Fluorescence
Transmission Electron Microscopy
The technique is not among the options
The Mass Spectrometer in the Inductively Coupled Plasma-Mass spectrometry system is used to_______________
generate electrons
calcinate samples
separate and quantify ions
integrate and differentiate concentrations
TGA Analyses can provide information on______________________
how a material reacts with methane as temperature changes
how the weight of material decreases with an increase in temperature
how the weight of a material increases as temperature decreases
how the weight of a material increases as temperature increases
Which of the statements is not correct about the image?
Not all the sample has decomposed at 800 degrees Celsius,
More than 29.4% of the sample is decomposed by 200 degrees Celsius
Not more than 9% of the sample is decomposed at 100 degrees Celsius
There is a drastic weight change around 340 to 360 degrees celsius
Transmission Electron spectroscopy allows for identifying particles by___________
forming dark spots formed on the positive of the detecting film
transmitting micro waves through the samples
introducing laser beams
magnifying the sample 2 times
Which of the following techniques will require the analyses of desorbed gases ?
Temperature programmed oxidation
Temperature programmed reduction
Thermogravimetric analyses
Thermal programmed desorption
Which of the following techniques would you recommend for elemental analyses?
X ray diffraction
Inductively Coupled Plasma-Mass spectrometry
Transmission Electron Microscopy
Temperature programmed desorption
D=kλ/βCOSΘ
β in the equation represents________________
Shape factor
Crystallite size
Wavelength of X-ray
Full Width at Half maximum
Which of these statements is not true for XRD analyses?
Relative crystallinity can be determined
Diffractograms are plotted in 2 theta values
The analyses shows better results for amorphous materials
The sample is required to diffract X-rays
