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- Table 5: Calculating AG Temp "C Temp Kelvin Ка In(Ka) AG=-RTIN(Ka) 22. 1 295.25, 0 0044521 -1.12 18950.34962 35 308 .1S 23236.969dH 0- Ocori4 889 -901 45° 318.18°k 0.0016855 - 8.69 22985.918 55° 328.15°K 0.00 0344201 -1.97 21144.06565 Average AG'= AH°= AS= (Note: the slope of the best fit line is equal to -AS" rather than AS" as stated in the video).Why is it important that the pressure is very low in EI-MS but much higher in CI-MS?(b) TABLE 3 shows data phase equilibrium diagram for carbon dioxide. TABLE 3 Pressure (atm) Temperature (°C) Triple point Critical point 5.2 -57 73 31 (i) Sketch a phase diagram for carbon dioxide (ii) Explain the phase changes that could possibly occur when a sample of carbon dioxide in a closed vessel under 1 atm pressure and a temperature of -78°C is pressurised isothermally to 10atm, followed by isobaric heating to 20°C.
- 2 When 50 cm' of hydrochloric acid of concentration 2.0 mol dm is added to 50 cm' of sodium hydroxide solution of concentration 2.0mol dm, the temperature increase is 13.0°C HCl(aq) + NAOH(aq) + NaCl(aq) + H,O(1) The experiment is repeated using 25 cm of the same hydrochloric acid and 50 cm' of the same sodium hydroxide solution. What is the temperature increase? O A 4.9°C I B 6.5°C I C 8.7°C D 13.0°CThe melting temperature of a DNA molecule (in the sense of the temperature at which it undergoes denaturation) can be determined by calorimetric methods. The following data were obtained in 0.010 M Na3PO4(aq) for a series of DNA molecules with varying base pair composition, with f the fraction of G-C base pairs:f 0.375 0.509 0.589 0.688 0.750Tm/K 339 344 348 351 354Estimate the melting temperature of a DNA molecule containing40.0 per cent G-C base pairs.CI Cl2 heat 8⁰ (1) (2) (3) Based on your results for the radical chlorination experiment, predict which products would be most and least abundant in the product mixture. Briefly justify your answer. CI
- Determine the molal analysis of the products of combustion when octane (C8H18) is burned with 200% theoretical air, and determine the dew point of the products if the pressure is 0.1 MPa.Volatile and semi-volatile compounds can be analyzed by GChow to sketch the thermogravimetric curve anticipated when a 25 mg sample of FeCl3.6H2O is heated from 0 deg C to 400 deg C. The following table summarizes some data about three iron (III) chlorides Compound Molecular mass Melting point, deg C FeCl3.6H2O 270 37 FeCl3.5/2H2O 207 56 FeCl3 162 306
- Formula for work done in isobaric process(according to chemistry thermodynamics)Sol. No. 1 2 3 4 5 Volume of KI (ml) 20 18 15 12 10 [KI] K 0.195121951 0.00039 0.175609756 0.0004 0.146341463 0.0005 0.117073171 0.0006 0.097560976 0.0004 Log K Q1) Plot Log K' on y-axis and Log [KI] on x-axis A) Slope = B) Intercept = e) Log K = D) K = Log [KI] -3.40894 -0.70969387 -3.39794 -0.75545136 -3.30103 -0.834632606 -3.22185 -0.931542619 -3.39794 -1.010723865Ratio of specific heats of CO2 at 825K?