help with question 2 please. 2. The slope of the melting curve of methane (CH4) is given bydP(0.08446 bar/K1.85). T0.85%3DdT(yes, the exponents are all correct!) from the triple point to arbitrary temperatures. Usingthe fact that the temperature and pressure of the triple point are 90.68 K and 0.1174 bars,calculate the melting pressure (in bars) of methane at 150 K. (Hint: You will need tointegrate to obtain the correct pressure!)3. The following data are available for the two "traditional" solid forms of carbon at 300 K,AllotropeAH combustion (kJ/mol)S° (J/mol-K)Density (g/cm³)diamond395.3202.3973.513graphite393.4255.7402.260(a) What is the Gibbs free energy (in kJ/mol) of the transition from graphite to diamond at 1bar and 300 K? In which direction is the process spontaneous?(b) Estimate the pressure (in bars) at which the two allotropes would be in equilibrium at300 K. To address this question, consider how the Gibbs energy changes with pressure ata given Tusing = V. Assume that the densities of the two allotropes are%3DT.independent of pressure (this is actually incorrect in real life!).

The value of temperature and pressure at triple point is 90.68 K and 0.1174 bar. The given…

2. The slope of the melting curve of methane (CH4) is given by dP (0.08446 bar/K1.85). T0.85 dT (yes, the exponents are all correct!) from the triple point to arbitrary temperatures. Using the fact that the temperature and pressure of the triple point are 90.68 K and 0.1174 bars, calculate the melting pressure (in bars) of methane at 150 K. (Hint: You will need to integrate to obtain the correct pressure!)

2. The slope of the melting curve of methane (CH4) is given by dP (0.08446 bar/K1.85). T0.85 dT (yes, the exponents are all correct!) from the triple point to arbitrary temperatures. Using the fact that the temperature and pressure of the triple point are 90.68 K and 0.1174 bars, calculate the melting pressure (in bars) of methane at 150 K. (Hint: You will need to integrate to obtain the correct pressure!)

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter9: Liquids And Solids

Section: Chapter Questions

Problem 13QAP

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