1. Use the attached table to: a) calculate enthalpy for a gas mixture containing 40% by volume of carbon dioxide and 60% by volume of methane at a temperature of 470 oC and a pressure of 1 bar. The reference state is set to 25 oC, 1 bar and the answer shall be given in kJ / mol. b) calculate enthalpy for water vapor at 1 bar and 400 oC. The reference state is set to 25 oC, 1 bar and the answer shall be given in kJ / mol. The steam generation heat for water at 25 oC is 44 kJ / mol. Note that water in the reference state is a liquid.

NO 25 Medelmolvrme (medelvrmekapacitivitet) fr gaser vid lgt tryck mellan 25C och angiven temperatur. Enhet: J mol' K' Temp. N2 NH O2 H2O CO2 CH4 29.12 29.85 35.30 29.36 33.57 37.17 35.77 100 29.17 29.89 29.64 33.82 38.71 37.57 200 29.27 30.23 30.05 34.21 40.58 40.25 300 29.44 30.34 30.51 34.37 42.30 43.05 400 29.66 30.55 30.99 35.18 43.76 45.90 500 29.95 30.92 31.44 35.73 45.10 48.74 600 30.25 31.25 45.14 31.87 36.31 46.23 51.34 700 30.53 31.59 46.14 32.24 36.89 47.28 53.97 800 30.83 31.92 47.19 32.60 37.50 48.24 56.40 900 31.14 32.25 48.19 32.94 38.11 49.12 58.74 1000 31.41 32.52 49.20 33.23 38.69 49.87 60.92 1100 31.69 32.80 50.24 33.51 39.28 50.63 62.93 1200 31.94 33.05 51.25 33.76 39.85 51.25 64.81 1300 32.18 33.27 52.25 33.99 40.42 51.84 66.53 1400 32.38 33.45 53.26 34.17 40.88 52.30 68.16 1500 32.58 33.64 54.29 34.32 41.38 53.09 69.62