Fiberglass is a common type of fiber-reinforced plastic using glass fiber. The fibers may berandomly arranged, flattened into a sheet, or woven into glass cloth. DSC spectra of fiberglass isshown in the image below.IV.a. What is the glass transition temperature (T,) of fiberglass?b. What temperature will fiberglass crystallize?c. What temperature will fiberglass melt?4138.2°C2-0-75.7 CH237.0°C45.1Jgthe130.0°C33.0g-6-250.6°C-850150200100250300Exo UpTemperature ("C)Universal V4.TATA InstrumentsHeat Flow (mW)

The Differential scanning calorimeter(DSC) plot shows an increase heat flow of exothermic event(…

Iv. Fiberglass is a common type of fiber-reinforced plastic using glass fiber. The fibers may be randomly arranged, flattened into a sheet, or woven into glass cloth. DSC spectra of fiberglass is shown in the image below. a. What is the glass transition temperature (Tg) of fiberglass? b. What temperature will fiberglass crystallize? c. What temperature will fiberglass melt? 138.2C 2- 0- 75.7 CH 237.0°C 45.1g 130.0°C 33 Og -6- 250.6°C -8- 50 150 250 300 100 200 Eo Up Temperature ("C) Universal V4.7A TA Instruments Heat Flow (mW) 4,

Iv. Fiberglass is a common type of fiber-reinforced plastic using glass fiber. The fibers may be randomly arranged, flattened into a sheet, or woven into glass cloth. DSC spectra of fiberglass is shown in the image below. a. What is the glass transition temperature (Tg) of fiberglass? b. What temperature will fiberglass crystallize? c. What temperature will fiberglass melt? 138.2C 2- 0- 75.7 CH 237.0°C 45.1g 130.0°C 33 Og -6- 250.6°C -8- 50 150 250 300 100 200 Eo Up Temperature ("C) Universal V4.7A TA Instruments Heat Flow (mW) 4,

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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4. Which of the following is not 0: a. AHf° C(graphite) b. AG;° N2(g) c. S° O2(g) d. S° of a perfect crystal at 0 K e. all of the above are 0 f. none of the above are 0
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H8.
QUESTION 13 One statement is not true for the physical transition from H₂O(s) to H₂O(l) at constant pressure. A. Thermodynamically, the process requires expelling (removing) energy C. O Masin d S It occurs due to rupturing of hydrogen bonds of the ice crystalline lattice 100 9 B. 4/01/ The temperature of the liquid phase is higher than the normal melting point D. The transition produces a liquid phase of lower energy < D (4) ENG 9: 4/2
D. ASurroundings 3. Solid Copper (Cu) undergoes phase transition into silver gas Cu(s) Cu(g) if AHsub $70 kJ/mol and AS-328 J/mol K (T°F-32) × 5/9 = T°C TK-T°C + 273 What is the temperature of the phase transition in kelvin D. 1.96 A. 2750 B. 2477 C. 1738 E. 367 nation
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Why does a reaction that has a starting material contain a boiling point of 165 °C whereas a product has a boiling point of 110 °C? Refer to intermolecular forces in your answer.
A substance has the following properties: AHfus 10.0 kJ/mol AHvap=20.0 kJ/mol Cp (solid) = 60. J mol-¹ K-¹ Cp (liquid) = 30. J mol-¹ K-¹ Cp (gas) = 60. J mol-¹ K-¹ =
8. Select the substance that is not in its standard state. a) NaCl(s) b) H₂O(1) c) C(s; graphite) d) CO₂(g) N₂ N₂(1)
9 Consider the following phase change equilibrium: CHCI3 (s)=CHCIl3 (1) If AH° is 9.73 kJ/mol and AS° is 43.39 J/mol K, determine the melting point of CHCI3 in K? Do not report units in your answer. Report you answer as a whole number (no places past the decimal point) Type your answer...
W Y. Temperature, K 303 К Time, min USEFUL DATA: Specific heat (solid): 0.40 J/g•K Heat of fusion: 6.11 J/g Specific heat (liquid): 0.65 J/g•K Heat of vaporization: 281.4 Jg Specific heat (gas): 0.32 J/g K
Benzene is a common nonpolar solvent used in industry and research. It has the following thermodynamic data: Hfus = 127 J/g Hvap = 394 J/g m.p. = 5.5oC b.p. = 80.0oC csolid = 1.51 J/g oC cliquid = 1.73 J/g oC cgas = 1.06 J/g oC What energy (in joules) is involved when 35.0 g of benzene cools from 95.0 oC to 55.0 oC? (Please use at least 3 non-zero digits!)