Oxygen, O 2 , dissolves quite well within a class of com-pounds known as liquid perfluorocarbons—so well that oxy-generated perfluorocarbons can be inhaled in a liquid phase. as is demonstrated by the rodent shown below the water bound goldfish. Do you suppose perfluorocarbon molecules are polar or nonpolar? Why would the rodent drown if it were brought up to the water layer, and why would the gold fish die if they swam down into the perfluorocarbon layer? How might perfluorocarbons be used to dean our lungs or serve as an artificial blood? When is it acceptable to sacri-fice the lives of animals for scientific research?
Oxygen, O 2 , dissolves quite well within a class of com-pounds known as liquid perfluorocarbons—so well that oxy-generated perfluorocarbons can be inhaled in a liquid phase. as is demonstrated by the rodent shown below the water bound goldfish. Do you suppose perfluorocarbon molecules are polar or nonpolar? Why would the rodent drown if it were brought up to the water layer, and why would the gold fish die if they swam down into the perfluorocarbon layer? How might perfluorocarbons be used to dean our lungs or serve as an artificial blood? When is it acceptable to sacri-fice the lives of animals for scientific research?
Oxygen,
O
2
, dissolves quite well within a class of com-pounds known as liquid perfluorocarbons—so well that oxy-generated perfluorocarbons can be inhaled in a liquid phase. as is demonstrated by the rodent shown below the water bound goldfish. Do you suppose perfluorocarbon molecules are polar or nonpolar? Why would the rodent drown if it were brought up to the water layer, and why would the gold fish die if they swam down into the perfluorocarbon layer? How might perfluorocarbons be used to dean our lungs or serve as an artificial blood? When is it acceptable to sacri-fice the lives of animals for scientific research?
Explain the following phenomenon giving reasons :(i) Tyndall effect(ii) Brownian movement(iii) Physical adsorption decreases with increase in temperature.
Consider a hexagonal close packed cell with cell constants c and a (see figures below). Each
atom in the central layer forms equilateral tetrahedron structures with the 3 atoms directly below
it (bottom, red tetrahedron in figure on the right).
a) Derive the ratio
b) How many tetrahedral and octahedral interstitial sites are there per hcp unit cell? Explain
your reasoning.
Essential University Physics: Volume 2 (3rd Edition)
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The Laws of Thermodynamics, Entropy, and Gibbs Free Energy; Author: Professor Dave Explains;https://www.youtube.com/watch?v=8N1BxHgsoOw;License: Standard YouTube License, CC-BY