Question

need help on part B

a Calculate the pressure exerted by 20.0 g of Co, in a 600 ml. vessel at 298 K using the ideal gas equation. Then, recalculate the pressure using the van der Waals equation. Assuming that the pressure calculated from the van der Waals equation is correct, what is the percent error in the answer when using the ideal gas equation? Van der Waals constants for CO2 are: a = 3.50 -, and b=0.0427 L/mol; R -0.082057 L-atm K. mol mola Pideal gw law - 18.5 atm Pvan der Waals - 170 atm Percent error = 8.11 Next, cool the 20.0 g sample of Co, in the 600 ml. vessel to - 70 °C. Then perform the same calculation for the pressure exerted by COat this new temperature, using both the ideal gas law and the van der Waals equation. Again, what is the percent error when using the ideal gas equation? Van der Waals constants for Co, are: -3.59 - and 0427 L/mol; R = 0.082057 a Pascalpuluw Pran der Waals t atm Percent error - %

Answer 1

now W220.0 gm 2200 UE P=2 v 600mL 2 600 20.62 ideal gas casustado en PranRY 20082 Latin 1 mur de unos 12(273-70 ) 231 T22 Panet 0.45 mol X0:082 Lahmi mor x 36 0.62 édeal ges p = 0.1845 ahm. real gay (Ptola) Cranblanet (P+(6:26)* 359 (66 - 0:45200427) gosV 920.45X0-082x3 (P+1,2116 ) 10.580 785) 20:1107 (P + 1.2016) - 0.1107 -0.580785 P+1:2116 2 0.1906 Pa 0.19 06-12116 P2-1024 cs rear gas pe 14.02.11

Pero ent error i 11.021 - Oil0u5 l 1 X 100 1.024 2 81,9 y, P-P- P