Determine a densidade do gás metano (CH4) em gL-1 (a) nas CNTP, (b) 1,20atm e 45°C, (c) 92,4 KPa e 28°C. (CNTP=1atm e 0°C)

(a) 1 atm, 0°C

d=P.M/R.T

d=1.16/0,082.273k

d=16/22386

d= 7,14.10^-4 gL-1

ou 0,71gL-

(b) 1,20atm, 45°C

d=P.M/R.T

d=1,20atm.16M/0,082.318,15

d=19L/260883

d=0,73g/L ou 0,72g/L

(c) 92,4KPa, 28°C

28°c+273k=301k

1atm--101,325KPa

x--------92,4KPa

x=0,911atm

d=P.M/R.T

d=0,911atm.16M/0,082.301K

d=14,57/24,682

d=0,59g/L-1