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Concept explainers
(a)
Interpretation:
The variation of the vapour pressure of hexane may be written as ln p = A-B/T, A= 15.77 and B=3811 K. Thus, the enthalpy of vaporization has to be determined.
Concept introduction:
The Clapeyron equation is exact and applies rigorously to all first order phase transitions. Its derivation involves approximations, in particular the assumptions that the perfect
Clausius-Clapyron equation,
ln P2P1 = ΔHvapR (1T2 − 1T1) where,ΔHvap → Enthalpy of vaporizationR → Gas constantP → PressureT → Temperature
(b)
Interpretation:
The variation of the vapour pressure of hexane may be written as ln p = A-B/T, A= 15.77 and B=3811 K. Thus, the normal boiling point of hexane has to be determined.
Concept introduction:
The Clapeyron equation is exact and applies rigorously to all first order phase transitions. Its derivation involves approximations, in particular the assumptions that the perfect gas law holds and that the volume of condensed phases can be neglected in comparison to the volume of the gaseous phase. It can be applies only to phase transitions between the gaseous state and condensed phases.
Clausius-Clapyron equation,
ln P2P1 = ΔHvapR (1T2 − 1T1) where,ΔHvap → Enthalpy of vaporizationR → Gas constantP → PressureT → Temperature
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Chapter 4 Solutions
Elements Of Physical Chemistry
- Q10: (a) Propose a synthesis of C from A. (b) Propose a synthesis of C from B. Br Br ...\SCH 3 A B Carrow_forward9: Complete the missing entities for following reactions (e.g., major product(s), reactants, and/or solvents) for the SN2 reactions to occur efficiently. Include curved-arrow mechanism for reactions a) to d).arrow_forwardComplete the missing entities for following reactions (e.g., major product(s), reactants, and/or solvents) for the SN2 reactions to occur efficiently. Include curved-arrow mechanism for reactions a) to d).arrow_forward
- QUESTION 3: Provide the synthetic steps that convert the starting material into the product (no mechanism required). HO OH NH CH3 multiple steps 요요 H3Carrow_forwardQ6: Predict the effect of the changes given on the rate of the reaction below. CH3OH CH3Cl + NaOCH3 → CH3OCH3 + NaCl a) Change the substrate from CH3CI to CH31: b) Change the nucleophile from NaOCH 3 to NaSCH3: c) Change the substrate from CH3CI to (CH3)2CHCI: d) Change the solvent from CH3OH to DMSO.arrow_forwardQ3: Arrange each group of compounds from fastest SN2 reaction rate to slowest SN2 reaction rate. a) CI Cl فيكم H3C-Cl A B C D Br Br b) A B C Br H3C-Br Darrow_forward
- Q2: Group these solvents into either protic solvents or aprotic solvents. Acetonitrile (CH3CN), H₂O, Acetic acid (CH3COOH), Acetone (CH3COCH3), CH3CH2OH, DMSO (CH3SOCH3), DMF (HCON(CH3)2), CH3OHarrow_forwardSuppose the rate of evaporation in a hot, dry region is 1.76 meters per year, and the seawater there has a salinity of 35 ‰. Assuming a 93% yield, how much salt (NaCl) can be harvested each year from 1 km2 of solar evaporation ponds that use this seawater as a source?arrow_forwardhelparrow_forward
- Explain why only the lone pairs on the central atom are taken into consideration when predicting molecular shapearrow_forward(ME EX1) Prblm #9/10 Can you explain in detail (step by step) I'm so confused with these problems. For turmber 13 can u turn them into lewis dot structures so I can better understand because, and then as well explain the resonance structure part. Thanks for the help.arrow_forwardProblems 19 and 20: (ME EX1) Can you please explain the following in detail? I'm having trouble understanding them. Both problems are difficult for me to explain in detail, so please include the drawings and answers.arrow_forward
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