Question

3. An empty 49.0 L storage tank is filled with 12.07 kg of HI. Calculate the pressure of HI in the tank at 28°C obtained using the ideal gas law. at nnn 1aual wbarn the C11

Answer 1

Solution:

Number of moles (n) of HI = mass / molar mass. = 12.07 kg / 127.911 g mol-1 = 12070 g / 127.911 g mol- = 94.3625 mol

According to ideal gas equation,

PV = n R T

P = nRT /V

Where, P = pressure = ?

V = 49.0 L

R = 0.0821 L atm K-1 mol-1

T = 28 + 273 = 301 K

n = 94.3625 mol

Thus,

P = n R T /V

P = 94.3625 mol x 0.0821 L atm K-1 mol-1 x 301 K / 49.0 L

P = 47.59 atm