F. 3 E D Consider the phase diagram for an unknown substance provided in the questions below. di C T Which point on the phase diagram indicates the phase boundary where sublimation takes place? G. $ 4 do 2 R F % 5 T G B 0 6 Y H * 17 & 7 N U Prison J 8 A) A B) C C) D D) F M Home K 9 O End F10 L 0 PgUP P PgOnz +

F. 3 E D Consider the phase diagram for an unknown substance provided in the questions below. di C T Which point on the phase diagram indicates the phase boundary where sublimation takes place? G. $ 4 do 2 R F % 5 T G B 0 6 Y H * 17 & 7 N U Prison J 8 A) A B) C C) D D) F M Home K 9 O End F10 L 0 PgUP P PgOnz +

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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Consider the Phase Diagram below: 1F Pressure E Temperature A 4.
Answer the following questions based on the phase diagram (not to scale!) for fluorine, F2, and on the following data: AHfusion = 13.4 J/g, AHvap = 171 J/g, specific heat gas = 0.824 J/g.K 1.00 # 0.00016 P atm 55 53.4 53.5 T Kelvin 85.0 144.1 (a) What is the normal melting point? The normal boiling point? K (b) At what temperature and pressure do the three phases coexist in equilibrium? T = K, P = atm (c) Is fluorine a solid, a liquid or a gas at room temperature and pressure? ✪ (d) Which is the more dense phase, the liquid or the solid? (e) A 35.1 g sample of liquid fluorine is heated at a constant pressure of 1 atm from a temperature of 85 K to a temperature of 178.3 K. How much energy in kJ is required?
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Predict the pressure that would be observed if the container was at a temperature of 1,135K
this PC A 1 Mailings Review View Help AEE-A T estigate IN FH H % 5 € Paragraph 1 a. Ne J b. CCla c. H₂ d. H₂0 1. Identify the type or types of intermolecular forces [London, Dipole dipole, H-bond) present in each substance and then select the substance in each pair that has the higher boiling point. e. C₂H₂ O Search (Alt+Q) E SO₂ f. CH₂CH₂OCH₂CH₂ h. Cl.co T Q Search L FS A V HI 2 6 F6 Y lx E or or 18. or Normal or F₂ or Styles 3 4 5 Br₂ AL or Catio 7 CH4 or CH₂CH₂CH₂CH₂OH . F7 SO3 or H₂CO (C is central atom for both molecules) U No Spacing X G 10 = FS I H Heading 1 ( = FB D D F10 Heading 2 U + 1 PAD
C 11 Identifying phase transitions on a heating curve A pure solid sample of Substance X is put into an evacuated flask. The flask is heated at a steady rate and the temperature recorded as time passes. Here is a graph of the results: FI 80°F Cloudy 10. temperature (°C) -10. Explanation 70. 50. @ 30.- 4+ -30. -50. Use this graph to answer the following questions: <-70. What is the melting point of X ? Check 0. F3 X 10. F4 $ 20. heat added (kJ/mol) с F5 30. % 40. ▬ 0°C (check all that annly) F6 50. Q Search F7 & 60 F8 LDLCC * F9 ( F10 *- F11 ) © 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility 四 *+ F12 1 PrtSc + 4 Insert Delete Backspace <10) ► 11 C Jork ol Ar 모 1:5 2/17/
Nn.46. Subject :- Chemistry
The boiling point of 3 pure substances is given below: benzene C 6H 6 (80.1 °C), chloroform CHCI 3 (61.2 °C) and pyridine C 6H 5N (115 °C). Which of the following statements is true about their properties? O a. Benezene is most viscose among 3 liquids at 25 °C. b. Pyridine has the lowest molar enthalpy of vaporization. OC. Chloroform has the greatest vapor pressure at 30 °C. O d. At 50 °C, benzene is gas. e. Chloroform has the lowest evaporation rate at 25 °C.
Question 3 Which statement is true about the phase diagram of an unknown substance shown below? P (atm) 1.2. a. b. 10 20 30 40 50 60 70 T (°C) O (3) The normal melting point of the substance is about 70°C (2) On heating the substance from 20°C to 50°C at a constant pressure of 0.25 atm, the substance would melt (4) The triple point temperature is about 27°C. O (1) Point C corresponds to the critical point MacBook Pro
LO 5 Estimate the triple point. Pressure in atm 1.00- 0.75- 0.50- 0.25 0 -50 solid -25 liquid --B---- 0 25 Temperature, °C 0.75 atm and 60 degrees Celsius gas 0.20 atm and -10 degrees Celsius D C This phase diagram has four points, not three. E 50
Identify the point where only one phase is present? E G Pressure C OD and C O C, B and D OF and E O C and B O A and G A B Temperature F D
Which of the following is true about the phase diagrams for CO2 and H20 (not in order) given below? Sold Liqud Gas 1 atm Sold Liquid P Gas 1 atm T A The top phase diagram is associated with H20 and the bottom phase diagram is associated with CO2. B None of these phase diagrams refer to H20 and CO2. Both phase diagram a and b refer to H20 and CO2. The bottom phase diagram is associated with H20 and the top phase diagram is associated with Co2.