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The unit cell for Cr2O3 has hexagonal symmetry with lattice parameters a = 0.4961 nm and c = 1.360 nm. If the density of this material is 5.22 g/cm3, calculate its atomic packing factor. For this computation assume ionic radii of 0.062 nm and 0.140 nm, respectively for Cr3+ and O2-.
You have two identical containers at a fixed temperature. In one you have water vapor (H2O) and in the other you have carbon dioxide (CO2). In the high-temperature, classical limit for vibrations and rotations, meaning that (rotation angle
What is the best way to report density and absolute error in density based on the mass and volume measurements? Choose the single best answer 10.07 ± .194 gm/ml 10. ± .2 gm/ml
Prepare a report on pollution due to transport in Oman and its environmental impact.
Finding the Heat of Reaction (Enthalpy) from Heats of Formation, Calculate the heat of reaction at the standard reference state for the following reactions
A gas stream is entering a separator at 1 mole/sec with mole fractions 15% A and 85% B. (Component 1 is A, component 2 is B.) At surface, the gas stream is 8 bar and 350K. Two streams exit the separator, one primarily of A (0.99 A1, 0.01 A2), and one..
question 1a describe the main purpose of the globally harmonised system of classification and labelling of chemicalsb
read the titled book nontechnical guide to petroleum geology exploration drilling and production 2nd editionwritten by
Determine the longest wavelength (in cm) of X-rays that is still capable of producing diffraction in copper, Cu.
where and Qp are constants for a given gas-polymer pair. Consider the diffusion of hydrogen through a poly (dimethyl siloxane) (PDMSO) sheet 20 mm thick.
Ethane (C2H6) can be dehydrogenated to ethylene (C2H4), which can be dehydrogenated further to acetylene (C2H2). A reactor is fed with ethane and steam at a 1:1 mole ratio (The steam simply acts as a diluent). If the reactor runs at 1 atm and the rea..
question 1the effect of a hazardous substance depends on the concentration of the substance that is present in the
Design the manufacture of (tones/day) Ferrous sulphate monohydrate from waste pickle liquor. Pickling is generally associated with the removal of scale with mineral acid. Sulphuric acid is the most commonly used pickling acid.
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