We want to find the change in u for carbon dioxide between 50◦C and 200◦C at a pressure of 10 MPa. Find it using ideal gas and Table A.5, and repeat using the B section table.

Transcribed Image Text:

TABLE A.5 Properties of Various Ideal Gases at 25° C, 100 kPa* (SI Units) Chemical Molecular C, k = C, Gas Formula Mass (kg/kmol) (kJ/kg-K) (kg/m') (kJ/kg-K) (kJ/kg-K) Steam H2O 18.015 0.4615 0.0231 1.872 1.410 1.327 Acetylene C;H2 26.038 0.3193 1.05 1.699 1.380 1.231 Air 28.97 0.287 1.169 1.004 0.717 1.400 Ammonia NH3 17.031 0.4882 0.694 2.130 1.642 1.297 Argon Ar 39.948 0.2081 1.613 0.520 0.312 1.667 Butane C,H10 58.124 0.1430 2.407 1.716 1.573 1.091 Carbon dioxide CO, 44.01 0.1889 1.775 0.842 0.653 1.289 Carbon monoxide со 28.01 0.2968 1.13 1.041 0.744 1.399 Ethane C;H, 30.07 0.2765 1.222 1.766 1.490 1.186 Ethanol C,H;OH 46.069 0.1805 1.883 1.427 1.246 1.145 Ethylene C,H4 28.054 0.2964 1.138 1.548 1.252 1.237 Helium Не 4.003 2.0771 0.1615 5.193 3.116 1.667 Hydrogen H2 2.016 4.1243 0.0813 14.209 10.085 1.409 Methane CH4 16.043 0.5183 0.648 2.254 1.736 1.299 Methanol CH,OH 32.042 0.2595 1.31 1.405 1.146 1.227 Neon Ne 20.183 0.4120 0.814 1.03 0.618 1.667 Nitric oxide NO 30.006 0.2771 1.21 0.993 0.716 1.387 Nitrogen N2 28.013 0.2968 1.13 1.042 0.745 1.400 Nitrous oxide N20 44.013 0.1889 1.775 0.879 0.690 1.274 n-Octane 114.23 0.07279 0.092 1.711 1.638 1.044 Охудen O2 31.999 0.2598 1.292 0.922 0.662 1.393 Propane C;H3 44.094 0.1886 1.808 1.679 1.490 1.126 R-12 CC,F; 120.914 0.06876 4.98 0.616 0.547 1.126 R-22 CHCIF, 86.469 0.09616 3.54 0.658 0.562 1.171 R-32 CF,H; 52.024 0.1598 2.125 0.822 0.662 1.242 R-125 CHF,CF; 120.022 0.06927 4.918 0.791 0.722 1.097 R-134a CF,CH,F 102.03 0.08149 4.20 0.852 0.771 1.106 R-410a 72.585 0.11455 2.967 0.809 0.694 1.165 Sulfur dioxide SO, 64.059 0.1298 2.618 0.624 0.494 1.263 Sulfur trioxide SO, 80.053 0.10386 3.272 0.635 0.531 1.196 *Or saturation pressure if it is less than 100 kPa.