"298s0298" - 1 õppematerjal

Kodutöö II. Siseeneergia

Aine Intervall, K (kJ/mol) (J/mol*K) a b*103 c*10-5 CO -110,53 197,55 28,41 4,10 -0,46 298-2500 H2O -241,81 188,72 30,00 10,71 0,33 298-2500 CO2 -393,51 213,66 44,14 9,04 -8,54 298-2500 H2 0 130,52 27,28 3,26 0,5 298-3000 1. G0298 = H0298 - 298S0298 H0298 = Hf(H2) + Hf(CO2) - Hf(H2O) - Hf(CO) = -393,51 + 241,81 + 110,53 = -41,17 kJ/mol = -41170 J/mol S0298 = S0298(H2) + S0298(CO2) - S0298(H2O) - S0298(CO) = 130,52 + 213,66 ­ 188,72 ­ 197,55 = -42,09 J/mol*K G0298 = -41170 ­ 298*(-42,09) = -28627,18 J/mol = -28,62718 kJ/mol -G/RT 2. Kp = e Kp = e28627,18/(8,314 * 298) = 1,0425*105 3. T M0 M1*10-3 M2*105 1400 0,7595 0,4336 0,34835