1. From the plot of Specific Volume (g/cm³) vs Temperature of a 1.20 semicrystalline polymer, Determine - Density at Troom of the polymer 1.15 obtained fast cooling by which its solid fast çooling state is amorphous state. Density at Troom obtained from slow 1.10 cooling. 2. If the polymer is PE, calculate slow cooling heating 1.05 degree of crystallinity of PE obtained from slow cooling and fast Troom Temperature cooling. Specific Volume

1. From the plot of Specific Volume (g/cm³) vs Temperature of a 1.20 semicrystalline polymer, Determine - Density at Troom of the polymer 1.15 obtained fast cooling by which its solid fast çooling state is amorphous state. Density at Troom obtained from slow 1.10 cooling. 2. If the polymer is PE, calculate slow cooling heating 1.05 degree of crystallinity of PE obtained from slow cooling and fast Troom Temperature cooling. Specific Volume

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter9: Liquids, Solids, And Materials

Section: Chapter Questions

Problem 74QRT

See similar textbooks

Similar questions

A crystal has a cubic unit cell of 4.2 Å. Using a wavelength of 1.54 Å at which 2θ value would you expect tomeasure the (111) peak?
In the process of doping a semiconductor, certain impuri-ties are added to increase its electrical conductivity. Explain thisprocess for an n-type and a p-type semiconductor.
Define defects ( point, line, planar or volume defects) and impurities in crystal structures. Are they favourable?
Saturatad uater vapour at 60c°has iti pressure decrease to ncrease the volume by 10 % Keeping the temperature constant. To what pressure Should be expands.
Cu and Ni form a substitutional solidsolution. This means that the crystal structureof a Cu-Ni alloy consists of Ni atomssubstituting for Cu atoms in the regularatomic positions of the FCC structure. Fora Cu-30% wt.% Ni alloy, what fraction ofthe atomic sites does Ni occupy?
Explain why bimolecular condensation is a poor method for making unsymmetricalethers
Silicon is the fundamental component of integrated circuits.Si has the same structure as diamond. (a) Is Si a molecular,metallic, ionic, or covalent-network solid? (b) Siliconreadily reacts to form silicon dioxide, SiO2, which is quitehard and is insoluble in water. Is SiO2 most likely a molecular,metallic, ionic, or covalent-network solid?
Polymer PXX has a glass transition temperature of 49°C. What is the typical appearance and mechanical behaviour of this polymer PXX?
Polymer PXX has a glass transition temperature of 49°C. Describe the viscoelastic behaviour of the polymer at room temperature and at a temperatureof 55°C
Explain how the unit cell reflects the intensive properties of a material. Is the bulk material's properties the same as its unit cells? Provide an explanation for your answer.
Calculate the planer density of planes (0:-1:-1) for BCC, and FCC crystal structures?
is the phase diagram of sulphur. At 95.4˚C, the densities of rhombic andmonoclinic sulphur are 2.07 g cm-3and 1.96 g cm-3, whilst the enthalpy change for thephase transition from rhombic to monoclinic sulphur is 0.3 kJ mol-1. i) How many triple points are there?ii) What is the most stable form of sulphur under normal conditions?iii) Describe what happens when sulphur at 1 atm is heated from 80˚C to 200˚C.iv) Determine the volume change ΔV for the transformation from rhombic tomonoclinic sulphur.v) Estimate the pressure at which rhombic and monoclinic sulphur coexist inequilibrium at a temperature of 373 K.