Question

Calcular la temperatura en grados centígrados del N2 a 358 mmhg 250 ML y 3.5 kg

Answer 1

Mm N2 = 28 g/mol

P = 358 mmHg

1 atm ----- 760 mmHg
   x      ----  358 mmHg
x = 0.471 atm.

V = 250 / 1000 = 0.25 L

n = masa /Mm
m = 3.5 x 1000 = 3500 g

n = 3500 g / 28 g/mol
n = 125 mol

R = 0.0821 (atm L / mol K)
P x V = n x R x T

T = P x V
     ````````
       n x R

T =  0.471 Atm. 0.250 L
       ``````````````````````````
         125 mol x 0.0821(atm L/molK)

T = 0.0115 K

ºC = K - 273

ºC = 0.0115 - 273 = -272.98 ºC